HomeMy WebLinkAboutNOISE_ELEMENT_STUDY_OCT 1974 *NEW FILE*
NOISE ELEMENT-STUDY-OCT
1974
NOISE ELEMENT
WP
Aj�
October 1974
Adopted by the Newport Beach City Council
October 15, 1974
Resolution No. 8366
Amended by GPA 87-1 (B)
October 10, 1994
Resolution No. 94-96
TABLE OF CONTENTS
OUTLINE ...........................................................................................1
INTRODUCTION ................................................................................2
GOALSTATEMENT .........................................................................2
INVENTORY OF CURRENT AND FORECAST CONDITIONS ........3
Sourcesof Noise ....................................................................3
NoiseSensitive Receptors ....................................................7
Community Noise Measurement Survey .............................7
MeasurementProcedure .......................................................8
MeasurementResults ............................................................8
CommunityNoise Contours ................................................17
POLICIES AND IMPLEMENTATION ..............................................26
ANALYSIS .......................................................................................36
NoiseDefinitions ...................................................................36
Noise Metric and Assessment Criteria ................................41
Noise and Land Use Compatibility Guidelines ................46
Techniques for Mitigation of Community Noise .................51
GLOSSARY .....................................................................................65
NEWPORT BEACH GENERAL PLAN
NOISE ELEMENT
The Noise Element of a General Plan is a comprehensive program for including
noise control in the planning process. It is a tool for local planners to use to
achieve and maintain compatible land use with environmental noise levels. The
Noise Element identifies noise sensitive land uses and noise sources, and
defines areas of noise impact for the purpose of developing programs to insure
that Newport Beach residents will be protected from excessive noise intrusion.
The Noise Element follows the revised State guidelines in the State Government
Code Section 65302(f) and Section 46050.1 of the Health and Safety Code
(described in more detail in the Technical Appendix). The element quantifies the
community noise environment in terms of noise exposure contours for both near
and long-term levels of growth and traffic activity. The information contained in
this document provides the framework to achieve compatible land uses and
provide baseline levels and noise source identification for local noise ordinance
enforcement.
The Element is divided into seven sections and an Appendix. Included in the
Element is a glossary that defines a number of key terms used in noise
assessments. The Noise Element is organized as follows:
1. INTRODUCTION - presents the noise issues in the City that are to be
addressed within the Noise Element.
2. GOAL STATEMENT - defines the goals of the Noise Element.
3. INVENTORY OF CURRENT AND FORECAST CONDITIONS - describes the
existing and future noise levels in the City.
4. POLICIES AND IMPLEMENTATION - defines and summarizes the policies
and programs to be implemented by the City to achieve the goals of the Element.
5. ANALYSIS - section describes the noise environment, effects of noise and
describes techniques to minimize noise and land use conflicts.
6. GLOSSARY - defines noise terminology used in the Element.
7. TECHNICAL APPENDIX - contains background information including
methodology, measurement and modeling results, and bibliography.
1.0 INTRODUCTION
Within the City of Newport Beach are a number of transportation related noise
sources including freeways and major and minor arterials. The existing freeway
includes the Corona Del Mar Freeway (State Route 73). In the future, the San
Joaquin Hills Transportation Corridor (SJHTC) will connect with State Route 73
and will be within the city boundary. John Wayne Airport lies just north of the
northern boundary of the City of Newport Beach with aircraft operations over the
City of Newport Beach. Charter and tour boat and recreational boat activity in
Newport Harbor are other transportation noise sources within the City. There are
also stationary (or non-transportation related) noise sources within the City of
Newport Beach which include restaurant/bar/entertainment establishments,
mechanical equipment, residential party noise, residential recreational facilities
including basketball courts and skateboard ramps and 'barking dogs. These are
some of the contributors of noise in Newport Beach. Effective strategies to
reduce their influence on the community noise environment are an essential part
of the Noise Element.
Information relative to the existing and forecast noise environment within
Newport Beach should be integrated into future land use planning decisions.
The Element presents the noise environment in order that the City may include
noise impact considerations in development programs.
Residential land uses and areas identified as noise sensitive should be protected
from excessive noise from transportation and non-transportation noise sources.
The impacts of non-transportation noises are most effectively controlled through
the enforcement and application of City stationary source noise Ordinances or
Regulations.
2.0 GOAL STATEMENT
Environmental noise is a major concern of the citizens of Newport Beach. In this
Noise Element of the General Plan, the policies and implementation programs for
controlling noise within the City boundaries are established. The polices and
programs established in this element derive from the goals set for noise control
within the City.
The goals of the City in adopting the Noise Element of the General Plan are as
follows:
1. Provide sufficient information concerning the community noise environment
by presenting current and forecast noise levels so that noise can be objectively
considered in land use planning decisions in the City of Newport Beach. This
inventory of the noise environment within the City will identify the different types
of noise sources, noise sensitive receptors, and some unique noise issues that
face the City of Newport Beach.
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2. Provide policies and implementation measures that will protect and maintain
those areas of the city that have acceptable noise environments. This includes
protecting those areas from both transportation related noise as well stationary
noise sources.
3. Provide programs that will reduce the noise levels in existing noise sensitive
areas where the noise environment has already reached unacceptable levels by
developing, where feasible, programs to reduce the noise levels in these areas
and ensuring that new development in these areas is compatible with
surrounding noise levels.
4. To establish a comprehensive program and minimize the impact of noise
generated by aircraft departing JWA and the maintain the quality of life for
Newport Beach residents by preserving the operational restrictions at JWA,
investigating ways to extend or strengthen those restrictions, and encouraging
the development of a second commercial airport in Orange County.
3.0 INVENTORY OF CURRENT AND FORECAST CONDITIONS
This section contains a description of the current and projected noise
environment within the City. This description of the noise environment is based
on an identification of noise sources and noise sensitive land uses, a community
noise measurement survey and noise contour maps.
To define the noise exposure, this section of the report first identifies the major
sources of noise in the community. Some of the major sources of transportation
related noise in and around Newport Beach include, but are not limited to, a
major freeway, major arterial roadways, John Wayne Airport, and occasional
helicopter overflights from Tustin Marine Corp Air Station (MCAS). In addition to
transportation related noise sources, there are also stationary noise sources and
some of these sources include, but are not limited to, residential and boat parties,
residential recreational facilities, restaurants, barking dogs, mechanical
equipment such as air conditioning units, and commercial centers. To
completely assess the noise environment in the City, noise sensitive receptors
must also be identified. As mandated by the state, noise sensitive receptors
include, but are not limited to, areas containing schools, hospitals, rest homes,
long-term medical or mental care facilities, residential areas, or any other land
use areas deemed noise sensitive by the local jurisdiction.
3.1 Sources of Noise
Noise sources in The City of Newport Beach can be divided into two basic
categories, transportation and non-transportation sources. In this summary of the
noise exposure, the transportation sources are further reduced to four sub-
categories: freeways, major and minor arterial roadways, aircraft, and water
vehicle sources. Stationary sources and each of these transportation sources
and their impacts on the noise environment of Newport Beach are summarized in
the following paragraphs.
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3.1.1 Transportation Noise Sources
The most common sources of noise in urban areas are transportation related
noise sources. These include automobiles, trucks, motorcycles and aircraft.
Motor vehicle noise is of concern because it is characterized by a high number of
individual events which often create a sustained noise level and by its proximity
to areas sensitive to noise exposure.
Freeways - The City of Newport Beach has one freeway within its borders, State
Route 73, and one freeway that will be within its border in the future, the San
Joaquin Hills Transportation Corridor (SJHTC). The Corona Del Mar Freeway
(SR-73) runs in a northwest/southeast direction through the City's northern
section. The portion of State Route 73 that cuts through the northern portion of
the city is below grade from the adjacent land uses. There are a few residences
in close proximity to this freeway. None of the homes that are located directly
adjacent to the freeway are exposed to noise levels in excess of 65 CNEL. Note
that noise levels from this freeway are likely to increase in the future due to
increased traffic along the freeway.
The future SJHTC; (San Joaquin Hills Transportation Corridor) will run in a
northwest/southeast direction through the City's northeastern boundary
connecting with the State Route 73 at Jamboree Road. At various locations, the
freeway will be at grade with or elevated above the adjacent land uses. There
are a few existing residences that will be in close proximity to this freeway when
the freeway is built, but these residences have already included noise mitigation
measures to sufficiently attenuate the noise from the San Joaquin Hills
Transportation Corridor. Therefore, none of these homes that will be located
directly adjacent to the freeway will be exposed to noise levels in excess of 65
CNEL.
Aircraft Operations - Many residents of Newport Beach are impacted by noise
generated by commercial and general aviation aircraft departing John Wayne
Airport. Newport Beach is located immediately south of John Wayne Airport and
is under the primary departure corridor. The County of Orange is the operator of
John Wayne Airport. The air traffic is made up of commercial air carriers,
commuter turbo-prop aircraft, business jets, and single and twin engine general
aviation aircraft. There is also aircraft traffic from the Tustin Marine Corp Air
Station (MCAS) that overfly the Newport Beach area. However, the MCAS will
be closing and the aircraft overflight out of this air station will cease at the time of
closure. The City has a long history of disputes with the County regarding
aircraft noise from John Wayne Airport. In 1985 the City, County, and two
Newport Beach homeowner associations entered into the John Wayne Airport
Settlement Agreement. This Settlement Agreement expires in 2005. The
Settlement Agreement establishes three types of aircraft based upon noise
generating characteristics and establish limits on aircraft utilizing the airport.
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Major and Minor Arterial Roadways - Traffic noise on surface streets is a
significant source of noise within the community. The major roadways in the city,
currently or in the future, include: Bluff Road, Placentia Avenue, Newport
Boulevard, Superior Avenue, Balboa Boulevard, 22nd Street, Dover Drive, 15th
Street, Campus Drive, Irvine Boulevard, Mesa Drive, Birch Street, Bristol Street,
North Bristol Street, Jamboree Road, Bayside Drive, MacArthur Boulevard, Von
Karman Avenue, University Drive North, University Drive, Bison Avenue,
Eastbluff Drive, Ford Road, San Joaquin Hills Road, Newport Center Drive,
Santa Barbara Drive, Santa Cruz Drive, Avocado Avenue, San Miguel Drive,
Spyglass Hill Road, Marguerite Avenue, and Pacific Coast Highway.
Noise levels along roadways are determined by a number of traffic
characteristics. Most important is the average daily traffic (ADT). Additional
factors include the percentage of trucks, vehicle speed, the time distribution of
this traffic and gradient of the roadway.
In general, most of the land uses along the arterial roadways is commercial and
industrial. However, there are a number of single-family homes that are located
adjacent to arterials.
Boats - The City of Newport has the largest small boat harbor in Southern
California, bordered by thousands of residents. Ten thousand boats operate
near noise-sensitive residential uses that border much of Newport Bay. Noise
associated with these boats may be a problem to these residences. Of particular
concern are the charter boats which generate engine noise, use loudspeakers,
and generate noise from the occupants of the charter.
3.1.2 Non-Transportation Noise Sources (Stationary Noise Sources)
There are many stationary noise sources within the boundaries of the City of
Newport Beach. Some of these stationary noise sources include, but are not
limited to, restaurant/badentertainment establishments, mechanical equipment,
residential party noise, residential recreational facilities including basketball
courts and skateboard ramps, and barking dogs. Some of these noise sources
will be discussed in greater detail below.
Restaurant/Bar/Entertainment Establishments - Numerous restaurants and bars
and entertainment establishments on PCH, the Peninsula, and Balboa Island
have been subject to noise complaints in the past. There are many of these
types of establishments near or adjacent to residential areas. This close
proximity to noise sensitive areas, the potentially high noise levels that these
establishments are able to produce, and the late hours of operation are some
reasons for the number of noise complaints that have been made in the past.
Mixed Use (Commercial/Residential) - The section above discusses the
problems of noise from restaurant/bar/entertainment establishments affecting
nearby residences where as this section discusses the unique problems
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associated with mixed use areas. In a mixed use building, a portion of it may be
used as commercial (i.e. office space, restaurant, market, dry cleaner, etc.) and
the remaining portion may be used as residential. This juxtaposition of two
distinctly different land use types presents a disparity in the appropriate noise
standards to be applied. Such mixed uses can range from a small retail structure
with a residence unit on the second floor (as seen on parts of Balboa Island and
the Balboa Peninsula) to larger commercial properties that include a residential
component. On the one hand, requiring that the commercial portion conform to
the more strict residential noise standards would make operating the commercial
facility difficult. On the other hand, applying the commercial noise standards to
the entire project would make the noise exposure levels at the residential portion
of the building potentially too high. Mixed use projects represent a unique and
difficult noise environment in terms of land use planning policy. There are
advantages to mixed use areas. Therefore, it is important that a program be
developed that allows mixed use developments to operate with a minimum
amount of conflict.
Mechanical Equipment Noise - Various Heating Ventilating and Air Conditioning
(HVAC) installations and occasional pool and spa pumps can be noise intrusions.
This is a problem especially in areas like Balboa Island, Lido Island, and the
peninsula where the homes are very close together. With the lack of side yard
space available between homes, there are very few options for the placement of
the air conditioning units to obtain maximum separation from neighboring homes.
Noise barriers or enclosures are very difficult to design for air conditioners
because air conditioning units require large clearances around the unit for proper
ventilation. These clearance requirements result in very large enclosures or
ineffective noise reduction. The use of air conditioners poses a significant
conflict between the desire to achieve low noise levels and the ability of residents
to own and operate air conditioners. In areas of the City with small side yard
areas this conflict may not have an easy resolution. Note that pool and spa
equipment is somewhat easier to mitigate because the required clearances for
ventilation are smaller and barriers and enclosures can be more effective. There
has also been some concern over the noise created by pulse heaters. These
heaters, as their name suggest, operate with pulses of air passing through the
unit and can generate noise characterized by a rhythmic pulse. This type of
noise can become very disturbing. There have also been noise problems from
the Hoag Hospital physical plant. This mechanical equipment is large since it
must service a large facility; therefore the noise levels can become loud. There
are condominiums adjacent to the Hoag Hospital that are exposed to the noise
generated by the physical plant.
Residential Party Noise - Residential party noise, particularly on Balboa Island,
the Balboa Peninsula, and in the West Newport Area Balboa Peninsula has been
an ongoing problem. The West Newport area, for example, has a high
percentage of short term rental units which, combined with the close proximity of
the housing units, has been the cause of many complaints within the City of
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Newport Beach. There are difficulties in trying to control party noise. If a noise
limit is established for enforcement using a quantitative measure, the code
enforcer, either a staff member from the City of Newport Beach Planning
Department or from the Police Department, would be required to make noise
measurements of the intrusive noise. Often, the disturbing levels of noise that
were generated by a party is reduced once a code enforcer arrives on the
premises to make measurements. Therefore, party noise level measurements
may be an impractical means of party noise enforcement since it is often not
possible to accurately capture the loud noise levels being generated by the party.
Historically, police officers use their judgment for identifying and controlling party
noise problems.
Boat Party Noise - In addition to residential party noise, boat parties which take
place on the boat while it is docked can be a source of noise. Since most of the
socializing on private boats takes place on deck (i.e. outdoors), there is little or
no means of attenuation from the party noise as many of the boats are in private
marinas or docked in front of residences. However, charter boats, generally
larger in size and carrying large numbers of paid passengers need to control on-
deck noise by means of eliminating outside loudspeakers.
Recreational Activities - Another source of stationary noise in the City of
Newport Beach is noise from recreational activities such as league and youth
sporting games. These are sometimes scheduled during early morning hours on
the weekends and can be a source of noise intrusion on nearby residences. The
typical type of noise generated include people shouting and whistles/horns
blowing. Some sporting events may also utilize PA systems.
Barking Dogs - There are many dogs within the City of Newport Beach
boundaries. Dog barks can be characterized as being impulsive and startling or
continuous and sustained. In either event, it can be a major source of noise
disturbance. Most people keep their dogs outdoors which makes it very difficult
to attenuate the noise due to these barking dogs.
3.2 Noise Sensitive Receptors
The City of Newport Beach has a number of public and, private educational
facilities, hospitals, convalescent homes and other facilities that are considered
noise sensitive. However, the primary noise sensitive use within the City is
residential use. The distribution of these sensitive uses varies from quiet
residential areas to loud residential such as those areas adjacent to the freeway.
3.3 Community Noise Measurement Survey
Based upon the identification of the major noise sources and the location of
sensitive receptors, a noise measurement survey was conducted. The function of
the survey was threefold. The first function was to determine the existing noise
7
levels at noise sensitive land uses. The second function was to provide empirical
data for the correlation and validation of the computer modeled noise
environment. A third important aspect of the survey was to obtain an accurate
description of the ambient noise levels in various communities throughout the
City. The Technical Appendix to this Element provides a complete description of
a series of comprehensive noise measurements made throughout the City of
Newport Beach.
3.4 Measurement Procedure
Thirty eight sites were selected for measurement of the noise environment in
Newport Beach. A review of noise complaints and identification of major noise
sources in the community provided the initial base for development of the
community noise survey. The measurement locations were selected on the basis
of proximity to major noise sources and noise sensitivity of the land use. The
measurement locations are shown in Figure 1. Noise measurements at five of
the sites (sites 24 & 28-31) along the beach were repeated once during a
summer weekday and once again during a summer weekend.
The Newport Beach Noise Element measurement survey utilized the BrUel &
Kjaer 2231 automated digital noise data acquisition system for short-term (15
minutes) LEQ readings. This instrument automatically calculates both the
Equivalent Noise Level (LEQ) and Percent Noise Level (L%) for any specific time
period. The noise monitor was equipped with a BrOel & Kjaer Type 4155 1/2 inch
electret microphone and was calibrated with a BrOel & Kjaer Type 4230
calibrator with calibrations traceable to the National Bureau of Standards.
Calibration for the calibrators are certified through the duration of the
measurements by BrUel & Kjaer. This measurement system satisfies the ANSI
(American National Standards Institute) Standards 1.4 for Type I precision noise
measurement instrumentation.
3.5 Measurement Results
The first session of the noise measurement program was conducted on four
separate days. The survey was taken on April 9, 17, 24, and May 7, 1991, at
thirty eight locations throughout the City. As mentioned earlier, measurements at
five of the sites (measurement sites 24, 28, 29, 30, and 31) were repeated twice
during the summer: once during a typical summer weekday (August 28, 1991)
and once again during a typical summer weekend (August 31, 1991). The results
of the ambient short-term noise measurements at each site are depicted in
Figure 2 (Parts 1-6). These figures also depict the primary noise source affecting
the noise environment. The quantities measured were the Equivalent Noise Level
(Leq), the maximum noise level (Lmax) and the Percent Noise Levels (L%).
Detailed listings of the measurements are summarized in the Technical
Appendix.
8
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M=REGREVEASSOCIATF-5 Noise Measurement Locations
NEWPORT BEACH NOISE ELEMENT 9
-- T-
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 90 Sources
I I
Point Conception & El Capitan Dr. Res KI 51 JIM=Tnwk Blic%distaritaitcrak
localtraffic
2 San Miguel W. of Yatch Coquette Res 60 RIMM Delivery Truck Traffic on SanMigual.
3 Ford E. of Newport Hills Res 61 Carhorn Traffic on Ford
I 1 1
4 Newport Hills Dr. W. & Port Wheeler Res Truck TrafficoriMmIrthurBIWA
'7" Newport Hills
Birds,traffic on Bison,jets
60
5 Bison & Belcourt Dr. North ReslCom Jilt flVM J017R Wayne Airport,A
helicopters irom El Toro
Jets from John Wayne
6 End of Almond Court (cul de sac) Res 57L4"",'�... jet
Airport nalghbofhood traffic,
&traffic on Jamboree
7 Eastbluff Dr N.E. of Vista Deloro Res 62 4 JetIFirecracker Traffic on Eastbluff Dr.,jets
Ifrom John Wayne Airport
8 Crown & Sea Lane Res 67 Tra I Ific Traffic on MacArthur
9 Marguerite, N. of Saucilito Res 66 Traffic Traffic
10 Front Yard of 515 Marguerite Res 63 Car horn Traffic
Legend: cause of Lmax FIGURE 2-1
L99 L90 L10 Lmax
hJESTRE GREVEASSOCATES GrapMc Summary of Ambient Measurement Results
NE"ORTBEACH NOISE ELEMENT
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 go Sources
Off PCH, across St from 326 Seaward Res Traffic TrafficonPCH
12 220 Marguerite, in front of house Res 119ach dump TrafficonMarquarite
truck
13 Vacant lot on Bayside Dr. Res 63 Truck Traffic on Bayscle&birds
jet 'Fraffic on Malabar&Bonnie
14 Malabar Dr. & Bonnie Doone Res -58 L Doona Terrace,wind in lives
er of Patolita & Bonnie Doone Res 60 jet jets,aliplaries
15 S.W. corn Local traffic,PCH traffic,
-A jet Light neighborhood traffic,
16 Dolphin Terrace & Bonnie Doone Res 63 birds,leatblower,&jets
17 Park & Onyx Res 61 1 0�1 J, t Traffic,hanzatedrig,&jets
18 1501 Mariner Res 61 UpS Truck i Traffic&crows
19 Holiday & Irvine, 1742 Irvine Ave. Res 71 Trash truck Traffic&Pfs
Traffic on ImIne,distant
20 527 Irvine Ave. ReslSchool 64 Truck jets 8 helicopters,lawn
Legend. 1,W I L Cause Of Linax FIGURE 2-2
L99 L90 LIO Lmax
s
MESTREGREVEASSOCLATES Graphic Summary of Ambient Measurement.Result
L 12
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 go Sources
1 1
21 'Lookout Point- across 1800 King Res 1 65 MWNKN1JMconst Traffic�mad construction,
Tractor hallcoptale,a airplanes
22 superior & 15th, E. side of superior Res Truck. Traffic
MoTorcycle
23 Superior, S. of Ticonderoga Res rgmiQ 1 raffic Traffic
24 Seashore between Cedar & Walnut ResIBch Prkg 57 Trdffic 'TralffoonPCH
La
63 TruckonPCH Traffic on PCH,phone line
25 N. side PCH between Cedar & Walnut Res/Com work,&airplanes
Car on Catyl
26 Lido Sands & Caryl Res 44 Local traffic,light PCH
traffic 1701SO
70
27 N.E. corner of Superior & PCH Res/Com IF I "J PCH traffic PCH traffic&construction
I I
28 4 Ist & W Balboa Res ko�l 61 School bus Traffic on Balboa
F-
29 E. Balboa between Alvarado & Coronado Res I Traffic,jets, helicopters
Traffic overshorairie
30 End of Adams on Channel Walkway ComlDock 51 jet Boat work,boat engines,
Jets,helicopters,&birds
Legend. MW Leq rk,MARA cause of Lmax FIGURE 2-3
L99 L90 1.10 Lmax
A4ESTREGREVEASSOCZ47ES Graphic Summary of Ambient Measurement Results
NEWPORTBEACH NOISE ELEMENT 11 13
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 90 Sources
31 1319 Balboa between E& F St Res MA 55 211aday Traffic on Baboa.dog
Davidsons barking
32 Via Lido Nord& Via Orvieto ReslScenic F-M 44 Wcar Consfruction.cats on Via
II Lido Nord,afrolanes,lots
33 Via Antibes & Via Lido Nord ReslScenic 45 Traffic Ttafficjets
34 Via Malaga & Via Lido, Sailing Prkng Com E"M 58 Traffic Traffic
-------- ----------------------
35 Deanza Trailer Pk, Old Site#9 Mobile Hm Pk IVI 51 617kafficonPCH Traft on PCH
36 Deanza Trailer Pk, 9 Mayflower Mobile Hm Pk 53 sirens Traffic on PCH
37 Corner of Dover Lane & Kent Res 5 ChAdyalling,car Traffic&jets
38 End of Carob St. Res Car an Carob,jet Traffic on Jamboree&
L5 8 bkob
Legend. 11M Le cause Of Lmax FIGURE 2.4
I% LW 00 Lmay
Graphic Summary of Ambient Measurement Results
MESTREGREVEASSOCIATES
NEWPORTBE4CH NOISE ELEMENT 14
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 90 Sources
TaIrk on PCH,people
24 Seashore between Cedar& Walnut Resfflch Prkg 59 nick wwrig e.jidnq by
28 4 Ist& W Balboa Res low 69 OOTD Bus Ralk on W.Balboa
I &people waWng by
29 E. Balboa between Alvarado & Coronado Res Truck Traffic on E.Balboa,airaaft
54 People,boats,aircraft,8.
30 End of Adams on Channel Walkway Com/Dock 11cw child
1 Ttaffic on Balboa,aircraft,
31 1319 Balboa between E& F streets Res People Talking helicopter, power toofs&
people waidirg by
Legend. IAMI Le CauseOfLmav FIGURE 2-5
L99 L90 LIO Laray
Ambient Measurement Results (Summer-Weekday)
MESTREGREVEASSOCLATES
NEWPORTBEACH NOISE ELEMENT
Sound Level fdBA) Noise
Site Location Land Use 40 50 60 70 80 90 Sources
Traffic on PCH,people
24 Seashore between Cedar& Walnut ReslBch Prkg Traffic walking by,A aircraft
28 41st& W Balboa Res 70 Shouting Traffic on W.Balboa
&people walking by
29 E. Balboa between Alvarado & Coronado Res WAV"I 66 MI Bus Traffic on W.Balboa,aircraft
I W I People talking,&caralarm
30 End of Adams on Channel Walkway ComlDock 57 Ili 7mon Talking People,boats,aircraft,&
child
64 Traffic on Balboa,altaraft,
31 1319 Balboa between E& F streets Res helicopter, &peopho
walking by
Legend. 1��Wj Le CausoOfLmax FIGURE 2-6
L99 L90 LIO LmaK
MESTRE GREVEASSOCIATES Ambient Measurement Results (Summer-Weekend)
NEWPORTSECH NOISE ELEMENT I
1 1 16
3.6 Community Noise Contours
Noise contours for all of the major transportation noise sources in Newport Beach
were developed for existing conditions and future conditions. These contours
were determined from the traffic levels for these sources. The contours are
expressed in terms of the Community Noise Equivalent Level (CNEL). The
existing conditions scenario was derived from 1991 traffic levels. Future
conditions are presented for the 20 year time period of Post 2010 and are based
on complete build-out of the General Plan.
The traffic noise levels projected in the Noise Element were computed using the
Highway Noise Model published by the Federal Highway Administration ("FHWA
Highway Traffic Noise Prediction Model," FHWA-RD-77-108, December 1978).
The FHWA Model uses traffic volume, vehicle mix, vehicle speed, and roadway
geometry to compute the LEQ noise level. A computer code has been written
which computes equivalent noise levels for each of the time periods used in
CNEL. Weighting these noise levels and summing them results in the CNEL for
the traffic projections used. The traffic data used to project these noise levels are
derived from the current update to the Circulation Element for the City. The
traffic mix data for the arterials are based on measurements for roadways in
Southern California and are considered typical for arterials in this area.
The existing roadway noise contours are shown in Figure 3. These contours are
based on existing traffic volumes that were obtained from the City of Newport
Beach Traffic Engineering Division. The existing traffic volumes are the winter,
1991 traffic counts. There are some roadway links in the City of Newport Beach
for which traffic counts were not made during winter, 1991. For these roadway
links, the summer and fall, 1986, and summer, 1988 traffic counts were used to
supplement the winter, 1991 traffic counts. The future traffic noise contours are
shown in Figure 4. These contours are based on future year 2010 projected
traffic volumes generated by Austin-Foust Associates in October, 1991 and
represent full build out of the General Plan.
The Calendar Year 1992 Report (January through December, 1992) for the John
Wayne Airport was published by the County of Orange. In addition the County
prepared EIR 546 addressing the change in the Phase 11 Access Plan Noise
Limits to accommodate the FAA required change in departure procedures. Noise
contours for the John Wayne Airport for calendar year 1992 are shown in Figure
5. The noise contours shown were generated using a computer noise model and
calibrated to match measured noise levels at the permanent noise monitoring
sites operated by the airport. Figure 6 shows the noise contours from EIR 508
(for 1985 Master Plan for John Wayne Airport) which represents the planning
contours used by the County of Orange and Airport Land Use Commission and
represents realization of the full 8.4 million annual passengers permitted by the
Access Plan in accordance with the 1985 Settlement Agreement between the
County of Orange, the City of Newport Beach, The Airport Working Group, and
17
SPON which is a private environmental interest group. It is shown that a portion
of the City of Newport Beach is within the 60 CNEL aircraft noise contour. A
portion of the unincorporated of the County of Orange that is in the City's sphere
of influence, Santa Ana Heights, is within the 65 CNEL contour. These contours
represent the maximum noise acceptable to the City of Newport Beach and form
the basis for land use and land planning decisions. The City will not rezone or
redesignate any residential land use to make it consistent with any increase in
noise resulting from the expiratio*n of, termination of or modification to the JWA
Settlement Agreement.
65
so
C7 V
I xf,
40
so
65
so
7 V- )
65
W, ;-A A
Ap
60
I A
FIGURE 3
MESTREGREVEASSOCIATES Existing Year 1991 Roadway CNEL Noise Contours
HEKPORTBEAcifivoisEaEmENT 19
;0
flo�
6WO
60 60
656s
60
65
r.17 so
6-
B-1 lk
60
c.UM RG.
FIGURE 4
MESTRE GREVE ASSOCIAM Future Year 2010 Roadway CNEL Noise Contours
NEWORTMACHNOISEaEMENT mmmm�21 EK
INN
FIGURE 5
JOHN WAYNE AIRPORT
Orange County, California
A
0'. -.-AN
53
1992 CNEL CONTOURS
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A.
Scala
ga
V.- Wk#1�".�
oil mi�
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A �31_
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va 0
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Z
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--at-
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—aza -,I
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=.ZIA
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-festm Gre,
-1 RAwliks,,A,
7 M.
NEPORT BEACH NOISE ELEMENT �23
V�Q
ii-- I-.. I I I Ei
��IJPP
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.-.-Ar 101
?Yllll
rDl
��Ox..
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V
JOHN WAYNE AIRPORT
EIR 5081EIS
CNEL CONTOURS
CY 2005
60 If 65 70 CNEL CONTOURS
SCALE-1.,39AO0
FIGURE 6
%
NEWPORT BEACH NOISE ELEMENT 24
Noise contours represent lines of equal noise exposure, just as the contour lines
on a topographic map are lines of equal elevation. The contours shown on the
maps are the 60 and 65 dB CNEL noise levels. The noise contours presented
should be used as a guide for land use planning. The 60 dB CNEL contour
defines the Noise Referral Zone. This is the noise level for which noise
considerations should be included when making land use policy decisions. The
65 dB CNEL contour describes the area for which new noise sensitive
developments'will be permitted only if appropriate mitigation' measures are
included such that the standards contained in this Element are achieved.
Currently, no property designated for residential development is within the 65
CNEL contour area and no new residential development should be permitted.
The reason for this restriction inside aircraft-generated 65 CNEL contours is that
there is no practical way to mitigate against aircraft noise in an exterior living
area, while it is possible and practical to mitigate against ground-based traffic
noise.
4.0 POLICIES AND IMPLEMENTATION
In order to develop policies and implementation measures, there must first be
some quantitative noise level goals be met. These goals are established here in
2 forms. The first is a land use/noise compatibility matrix and the second are
performance standards for design of facilities. A third set of quantitative noise
level goals for controlling noise of stationary sources is presented later in the
policies section.
The land use/noise compatibility matrix is presented in Table 1. This matrix is
1
used at the zoning level of project review to evaluate land use suitabil ty relative
to the noise environment. The indoor and outdoor noise standards for various
land uses are presented in Table 2. These noise standards are design
performance requirements that are not to be exceeded. Any land use that is
unable to meet the appropriate design noise standard would be deemed
inconsistent with this Noise Element of the General Plan of the City of Newport
Beach. These standards are evaluated during project review at the design level
of review including site design review and building permit review. It should be
noted that only the interior noise standard of 45 CNEL for residential uses is
required by the State of California and it applies only to multi-family projects
(California Noise Insulation Standards, California Administrative Code, Title 24,
Part 2). The design noise standards specified in Table 2 provide the quantified
standards for the goals in this Noise Element and extend the interior 45 CNEL
requirement to single family dwellings.
25
The policies and their associated programs that follow are intended to guide the
development of implementation actions in order to achieve the goals of the Noise
Element. In order to achieve the goals and objectives of the Noise Element, an
effective implementation program is necessary. The underlying purpose is to
reduce the number of people exposed to excessive noise and to minimize the
future effect of noise in the City. Following the policies are measures that the
City should consider implementing to control the impacts of noise in Newport
Beach.
26
Table I
LAND USE NOISE COMPATIBILITY MATRIX
LAND USE CATEGORIES COMMUNITY NOISE EQUIVALENT LEVEL
CNEL
CATEGORIES USES
,31 EQ Q 7-Q 75 Ug
RESMENTIAL SingleFamily,Two Family, A A 13 13 C D D
Mulaptellamily I
RESIDENTIAL Mobile Home A A B C C D D
COMMERULAL Hotel,Motel,Transient Lodging A A B B C C D
Regional,District
COMMERCIAL Commercial Retail,Bank
Re A A A A B B C
DIE10i n4PVC'c"1T Restaurant,Movie7beatm
MMERCIAL Office Building,Research and
INDUSTRIAL DevelopmentProfesslortal A A A B B C D
INSTr=ONAL Offices,CRY 011100 Building:
COMMERCIAL Amphilluatra,Concer:Hall
Rocraflon* Auditorium,Meeting Hall B C C D D D
INSTITUTIONAL B
Civic Center
Childrens Amusement Park
COMMERCIAL Minlamr:Golf Course,Go-czrt Track,
Recreation Equestrian Ceram Sports Club A A A B B D D
COMMERCIAL Automobile Service Station,Auto
General.Special DealershiA Manufacturing, A A A A B B B-
INDUSTPIALJNSTTIUnONAL Warchousln&Wholasalc�Utilities
INsTnullONAL Hospital,Church,ubruly
General Schools,Cl�m A A B C C D D
OPEN SPACE Parial A A A B C D D
Golf Course,r4mentries,
OPENSPACE Natum CeatersWild1lits Reserves, A A A B C C
WildlifisHabitat I
AORICULTURE Agricultma A [A A A I A A I A
INTERPRETATION
ZONEA Specified land use is satisfactory,based upon the assimapthin that any
CLEARLY COMPATIBLE builaings involved are of normal conventional construction without
any special noise insulation requirements.
ZONEB New construction or development should be undertaken only after detailed
NORMALLY COMPATIBLE analysis of the noise reduction requirements are made and needed
noise insulation features in the design are determined.Conventional
construction,with closed windows and fresh air supply systems or air
conditioning,will normally suffice.
ZONEC New construction or development should generally be discouraged.If new
NORMALLY INCOWA11BLE consxaction or development does proceed,a detailed analisis of noise
reduction requirements must be made and needed noise insulation features
included in the desbra,
ZONED New construction or development should generally not be undertaken.
CLEARLY INCOMPATIBLE
SOURCE: Mestre Greve Associates
NEWPORTBEACHNOISEELEMENT 27
Table 2
INTERIOR AND EXTERIOR NOISE STANDARDS
LAND USE CATEGORIES ENERGY AVERAGE CNEL
1 2
CATEGORIES Ulu INTERIOR EXTERIOR
RESIDENTIAL SingleFarrallyTwoFamily, 45 3 5? 65
Multiple Family
S
Mobile Home — 65
COMMERCIAL Hotel,Motel,Transient Lodging 45 65
INDUSTRIAL
INSTITUTIONAL CDainerrial Retail,Bank 55 —
Restaurant
Offlos Building,Research and
Development,Professional 50
offices,city orrice Buildine
Ampliftheatro,Concert Hall 45
Auditodurn,Meeting Hall
Gyriusasduas(Multipurpose) so
Sports Club 55
Manufacturing,warehousing, 65
Wholesale,utilities
Movie Theatres 45 —
INSTITUTIONAL Hospital,Schoole classro�nit 45 65
Church,Library 45 —
I
OPEN SPACE Park$
INTERPRETATION
1. Indoor envirormlerit excluding:Bathrooms,toilets,closets,corridors.
2. Outdoor environment limited to-.Private yard of single family
Multi-family private pWo or balcony which is served by a means of exit from inside.
Mobile home Park
Hospital Patio
Parles pic,-ic area
School's playground
Hotel and motel recreation area
3. Noise level requirement with closed windows.Mechanical ventilating system or other means of
natural veritilfairin shall be provided as of Chapter 12,Section 1205 of UBC.
4 Noise level requirement with open windows,if they are used to meet natural ventilation requirement
S. Exterior noise level should be such that interior noise level will not exceed 45 CNEL.
6. Except those areas around the airport within the 65 CNEL contour.
SOURCE: MestreGreveAssociatu
*A 'Aw NEWPORTBEACH NOISE ELEMENT
28
GOAL 4.11: Provide programs that will reduce the noise levels in existing noise
sensitive areas where the noise environment has already reached unacceptable
levels and ensuring that new development in these areas is compatible with
surrounding noise levels.
RELATED POLICY 4.11: Provide for reduction in noise impacts from
transportation related noise sources. Implementation options that the City may
consider include:
4.1.1: The City shall require the employment of noise mitigation measures,
consistent with funding capability, for private outdoor yard areas in the design of
City arterial road improvement projects which result in noise level increases of 3
dB CNEL or greater, or at the time when cumulative City road projects result in a
3 d13 CNEL or greater increase .
4.1.2: The City shall require the use of walls, berms or other noise mitigation
measures in the design of new residential or other new noise sensitive land uses
that are adjacent to major roads. Application of the Noise Standards in Table 2
shall govern this requirement.
4.1.3: the City shall seek to reduce transportation noise through proper design
and coordination of transportation routing. As part of the evaluation of
commercial projects, truck movements and routes in the City shall be evaluated
to provide effective separation from residential or other noise sensitive land uses.
For example, adding truck traffic to an arterial with adjacent commercial
development along the roadway creates less of a relative noise impact than
adding the truck traffic to a smaller roadway, such as a collector or secondary
arterial, where the land use is predominantly residential.
4.1.4: The City shall encourage the enforcement of State Motor Vehicle noise
standards for cars, trucks, and motorcycles through coordination with the
California Highway Patrol and Newport Beach Police Department.
4.1.5: The City shall require that noise be considered as part of the City approval
process for charter boating operations (Marine Charter Permit, Section 518
Municipal Code, Commercial Harbor Activities Permit, Section 1741 Municipal
Code). Specifically, Conditions of Approval will require operators to not exceed
the noise limits contained in the Noise Ordinance at residential land uses along
the bay. Exceptions would be granted for purposes of safety (audible warning
devices), maintenance (per the limits in hours of such activity contained in the
Noise Ordinance), sporting events, and sports training activities.
29
4.1.6: The City shall ensure that the Zoning Ordinance, Circulation Element and
Land Use Element of the General Plan fully integrate the policies ado'pted as part
of this Noise Element. The Zoning Ordinance and Land Use Element shall reflect
the requirements for consideration of noise in land use planning and zoning
actions and the Circulation Element shall reflect this element's recommendations
for noise mitigation as part of circulation improvement projects.
4.1.6.1: The City shall establish a program to secure funding for the construction
of noise barriers to protect private outdoor yard areas along arterial roadways
where existing homes are exposed to noise levels above the City noise
standards and develop a priority program for the construction of such barriers. A
potential source of such funding may be a fee for new projects which generate
new traffic within the City as well as road improvement funds where road
improvements are made. The amount of these fees should be proportional to the
amount of the new traffic that is caused by the new project. It should be
recognized that noise barriers will not always be feasible mitigation to roadway
noise. Noise barriers are most feasible for single family homes where the rear
i
yards are adjacent to the roadway. The feasibility of other s tuations should be
evaluated on a case by case basis.
GOAL 4.2: Provide sufficient information concerning the community noise
environment by presenting current and forecast noise levels so that noise can be
objectively considered in land use planning decisions in the City of Newport
Beach. This inventory of the noise environment within the City will identify the
different types of noise sources, noise sensitive receptors, and some unique
noise issues that face the City of Newport Beach.
RELATED POLICY 4.2: Incorporate noise considerations into land use planning
decisions. This policy is intended to prevent future noise and land-use
incompatibilities. This policy will be achieved through adopting one or more of the
following optional programs:
4.2.1: The City shall establish standards that specify acceptable limits of noise
for various land uses throughout the City including schools, hospitals,
convalescent homes, and other noise sensitive areas. These criteria are
designed to fully integrate noise considerations into land use planning to prevent
new noise/land use conflicts. Table I showed criteria used to assess the
compatibility of proposed land uses with the noise environment. These criteria
are the bases for the development of specific Noise Standards. These standards,
presented in Table 2, define the City policies related to land uses and acceptable
noise levels. These tables are the primary tools which allow the City to ensure
noise integrated planning for compatibility between land uses and outdoor noise.
The City shall require that all new projects within the City demonstrate
compliance with these standards at the time of building permit application.
30
4.2.1.1: Mixed use projects shall be given special consideration during design
review and Building Permit review. Every effort shall be made to ensure that the
noise sensitive portions of mixed use projects meet all City noise requirements.
The Planning Commission shall have the right to relax the exterior noise
standards for residential uses provided that such areas are limited in size, that
the project is oriented for adults, and that the interior 45 CNEL is met.
4.2.1.2: The City shall establish a threshold at w1fich a remodel must comply
with the Noise Standards shown in Table 2. In all cases all new room additions
must meet the interior noise requirement. If the remodel involves addition of more
than 50% new floor area, then all rooms in the structure must meet the interior
noise standards shown in Table 2.
4.2.1.3: In-fill projects in existing residential areas adjacent to major arterials
shall be given special consideration. Certain areas of the City such as Balboa
Boulevard have residences very close to the road and construction (new or
remodel) may have difficulty meeting the exterior noise standards for residential
uses. The Planning Commission may relax the exterior noise requirements if it
can be shown that there are no feasible mechanisms to meet the exterior noise
levels. The interior standard of 45 CNEL shall not be relaxed for any residential
project.
4.2.2: The City shall require acoustical design in new construction. The City shall
continue to enforce the State of California Uniform Building Code provisions that
specifies that the indoor noise levels for residential living spaces not exceed 45
dB CNEL due to the combined effect of all noise sources. The State requires
implementation of this standard when the outdoor noise levels exceed 60 dB
CNEL. The Noise Referral Zones (60 dB CNEL) can be used to determine when
this standard needs to be addressed. The Uniform Building Code (specifically,
the California Administrative Code, Title 24, Part 6, Division T25, Chapter 1,
Subchapter 1, Article 4, Sections T25-28) requires that "Interior community noise
levels (CNEULDN) with windows closed, attributable to exterior sources shall not
exceed an annual CNEL or ILDN of 45 d13 in any habitable room." The code
requires that this standard be applied to all new hotels, motels, apartment houses
and dwellings other than detached single-family dwellings. The City shall also
apply this standard to single family dwellings.
4.2.2.1: The City shall provide access to a large scale map of roadway and
CNEL contours anticipated for future conditions. Projects outside the relevant
contours shall need no further demonstration of compliance with these
standards. Prior to issuance of Building Permits noise sensitive uses within the
60 CNEL contour shall demonstrate through technical studies that the project will
meet interior noise standards and exterior noise standards, if any. Such studies
shall be conducted by persons qualified to perform such studies as demonstrated
by Membership in the Institute of Noise Control Engineers (INCE) or be
Registered Professional Engineer in the State of California.
31
4.2.2.2: The City shall require that, prior to issuance of building permits for multi-
family structures, the applicant demonstrate that the design of the structure will
adequately isolate noise between adjacent units (party walls and common
floor/ceilings) per Chapter 35 of the Uniform Building Code.
4.2.3: The City shall consider establishing standards for certain noise not
already governed by local ordinances or preempted by state or federal law as the
need requireg.
GOAL 4.3: Provide policies and implementation measures that will protect and
maintain those areas of the city that have acceptable noise environments. This
includes protecting those areas affected by both transportation related noise as
well as stationary noise sources.
RELATED POLICY 4.3: Provide for reduction in noise impacts from non-
transportation noise impacts. The focus of control of noise from non-
transportation sources is the Noise Ordinance. The Noise Ordinance is used to
protect people from noise generated by people or machinery on adjacent
properties.
Note that enforcement of party noise impacts and barking dog impacts are
presented as optional components of the Noise Ordinance. If not included in the
ordinance they would remain a function of police department enforcement action
per existing City policy. This is done because the noise ordinance enforcement is
through specific site measurements. Neither party noise nor barking dogs, by
virtue of their intermittent and unpredictable 'schedule,' are easily measured for
enforcement purposes and the presence of enforcement personnel can influence
the resulting measurements, Le, party goers quiet down when city officials arrive
or dogs bark at the measurement personnel.
4.3.1: The City shall adopt a new comprehensive noise ordinance to ensure that
City residents are not exposed to excessive noise levels from stationary noise
sources. The purpose of the ordinance is to protect people from non-
transportation related noise sources such as music, machinery, pumps and air
conditioners. The noise ordinance does not apply to motor vehicle noise on
public streets or to any aircraft. The noise ordinance is designed to protect quiet
residential areas (or other land uses requiring quiet, such as hospitals or
convalescent homes, etc.) from stationary noise sources. Land uses are
determined by their actual use and not by the current zoning designation. All new
noise sources would be required to meet the noise ordinance at the time of
construction. Existing noise sources would be given a 2 year period to be brought
into compliance. The Noise Ordinance compliance and enforcement shall be
designed for easy application by City staff.
32
4.3.1.1: The control of noise from parties at residential sites and noise from
barking dogs shall not be included in the noise ordinance, but shall remain a
function of the Police Department as provided by existing City Code.
4.3.2: All new building permits shall be issued based on compliance with the
noise limits in the Noise Ordinance. A specific set of conditions shall be
developed for the issuance of building permits that include mechanical
equipment. Maximum noise levels shall be defined. Definitions of noise sensitive
areas of residential properties shall be defined and compliance demonstrated
prior to the issuance of a building permit.
4.3.2.1: Air-conditioners present special problems in areas of the City where
side yard setbacks are very small (Balboa Island, Lido Island, and Balboa
Peninsula). Air-conditioners are exempt from enforcement action under the Noise
Ordinance. New permits for air-conditioners would be issued only where such
installations can be shown by computation, based on the Sound Rating of the
proposed equipment, to not exceed an A-weighted Sound Pressure Level of 55
dBA. The method of computation used shall be that specified in "Standard
Application of Sound Rated Outdoor Unitary Equipment," Standard 275, Air-
conditioning and Refrigeration Institute, 1984 or latest revision thereof.
4.3.2.2: In the event that air-conditioning equipment cannot meet the
requirements set forth above, then the noise limit for such equipment may be
raised to 65 dBA provided that the applicant obtains the written consent of all
owners of affected property.
4.3.3: All new use permits shall be issued based on compliance with the
limits in the Noise Ordinance. A specific set of conditions shall be developed for
the issuance use permits that include any use that may cause noise impacts on
residential areas. This includes, but is not limited to, restaurants, bars,
entertainment, parking facilities, and other commercial uses where large
numbers of people may be present. Maximum noise levels shall be defined.
Definitions of noise sensitive areas of residential properties shall be defined and
compliance demonstrated prior to the issuance of the use permit. Restaurants,
bars, and other entertainment type uses may be subject to a special provision of
the regulation that requires that operators of a facility with a noise violation
history be required to conduct on site noise monitoring to verify compliance with
the noise limits.
4.3.4: City enforcement of the community Noise Ordinance shall be the
responsibility of the Code Enforcement staff of the Planning Department. The
most effective method to control community noise impacts from non-
transportation noise sources is through application of the community noise
ordinance. It shall be the policy of the City to notify applicants for building permits
that include mechanical equipment of the existence of the Noise Ordinance.
Examples would include applicants for pools, spas, or air conditioners in which
33
mechanical equipment is located near residential property lines as well as certain
industrial activities and loading operations. The City may require as a condition of
project approval, at its discretion, noise measurement data be provided to the
City after construction demonstrating compliance with the Noise Ordinance.
4.3.4.1: The computational demonstration of compliance with noise limits shall
be reviewed and approved by the Building Department prior to issuance of
building permits for air conditioning equipment.
RELATED POLICY - Resolving existing and potential conflicts between various
noise sources and other human activities.
4.3.6: The City shall enforce the limits on hours of construction activity in or
adjacent to residential areas in order to reduce the intrusion of noise in the early
morning and late evening hours and on weekends and holidays (see Noise
Ordinance for specific hours). At the time of project approval (use permit) the City
shall ensure, through conditions of approval, that adequate noise control
measures at all construction sites are provided (through the provision of mufflers
and the physical separation of machinery maintenance areas from adjacent
residential uses).
4.3.6: The City shall establish and maintain coordination among the City
agencies involved in noise abatement. Ensure the continued operation of noise
enforcement efforts of the City through the Code Enforcement Officer and the
Police Department.
4.3.7: As a condition of use permit approval, the City shall limit delivery hours for
stores with loading areas or docks fronting, siding, bordering, or gaining access
on driveways adjacent to noise sensitive areas. Exemption from this restriction
should be based solely on full compliance with the nighttime noise limits in the
Noise Ordinance. Grocery stores are the major concern for late night delivery
noise. The City shall consider limiting delivery hours as part of the use permit for
such projects when noise sensitive uses are within 100 feet of loading areas
unless it can be shown that such noise is in full compliance with the Noise
Ordinance. The City shall consider potential effects of such limits relative to
increasing peak hour truck movements. In particular, the City shall consider in
determining limits on delivery hours if such limits on delivery hours will result in
increased peak hour truck movements and corresponding potential increases in
air quality impacts.
4.3.8: The City shall enforce the Noise Ordinance noise limits and limits on
hours of maintenance or construction activity in or adjacent to residential areas
that result from in-home hobby or work related activities.
34
GOAL 4.4: To establish a comprehensive program and minimize the impact of
noise generated by aircraft departing JWA and the quality of life for Newport
Beach residents by preserving the operational restrictions at JWA, investigating
ways to extend or strengthen those restrictions, and encouraging the
development of a second commercial airport in Orange County.
RELATED POLICY 4.4.1: Preservation of the JWA Settlement Agreement. The
City Council and staff shall take all steps necessary to protect the validity of the
JWA Settlement Agreement. These steps include, without limitation, the
following:
1. The City shall oppose, or seek protection from, and Federal legislative or
regulatory action that would or could affect or impair the County's ability to
operate JWA consistent with the provisions of the JWA Settlement Agreement or
the City's ability to enforce the Settlement Agreement. City staff shall continue to
monitor possible amendment of the Airport Noise and Capacity Act of 1990 as
well as various FAA Regulations and Advisory Circulars that relate to aircraft
departure procedures.
2. The City shall maintain membership in NOISE and/or other groups whose
primary purpose is to preserve the right of airport proprietors or noise impacted
residents to establish or enforce reasonable restrictions to reduce the noise
impact of commercial aircraft operations.
3. The City shall request, and assist the County in implementing, improvements
to the comprehensive noise control program at JWA, which are consistent with
the terms and provisions of the Settlement Agreement, and do not adversely
impact airport capacity or safety. Such improvements could include, without
limitation, the following:
(a) Implementation of aircraft flight or departure procedures which assure
the community of the best feasible noise abatement;
(b) The preservation of the existing permanent remote monitoring stations
and the upgrade of the current noise monitoring system whenever
feasible;
(c) Continued enforcement of the General Aviation Noise Ordinance.
4.4.2: Possible Extension of the Settlement Agreement.
City staff is directed to continue to discuss and, subject to City Council approval,
negotiate amendments to the JWA Settlement Agreement. The City Council will
not approve any amendments to the Settlement Agreement absent FAA
approval, preservation of the curfew, and a permanent reduction in the number of
permitted departures by the noisiest commercial aircraft currently using the
airport. These are the minimum criteria that must be satisfied before the Council
35
will even consider any limited increase in the number of permitted commercial jet
departures or passenger service levels.
4.4.3: The airport noise and transportation source noise assumptions in this
Element are based upon provisions of the John Wayne Airport Settlement
Agreement, the Phase 2 Access Plan and Quarterly Noise Report Update
prepared by JWA administration. The current 65 CNEL contours and the 85
SENEL contours, which are based upon the fleet mix and average number of
ADD for the first quarter of 1994, are the basis for the existing densities and
intensities of development authorized in the Land Use Element. An increase of
5%, or more in the area within the 65 CNEL or the 85 SENEL would be
inconsistent with this Element and the Land Use Element.
4.4.4: Modifications to the Phase 2 Access Plan and/or John Wayne Airport
Settlement Agreement that would reduce airport capacity or affect aircraft safety
shall not be permitted. The City shall not agree to any modification to the John
Wayne Airport Settlement Agreement or Phase 2 Access Plan unless the Federal
Aviation Administration has issued written commitments that the amendments do
not affect or impair the grandfathered status of the Access Plan or Settlement
Agreement pursuant to provision of the Airport Noise and Capacity Act of 1990.
5.0 ANALYSIS
5.1 Noise Definitions
Sound is technically described in terms of the loudness (amplitude) and
frequency (pitch) of the sound. The standard unit of measurement of the
loudness of sound is the Decibel (dB). Since the human ear is not equally
sensitive to sound at all frequencies, a special frequency-dependent rating scale
has been devised to relate noise to human sensitivity. The A-weighted decibel
scale (dBA) performs this compensation by discriminating against frequencies in
a manner approximating the sensitivity of the human ear.
Decibels are based on the logarithmic scale. The logarithmic scale compresses
the wide range in sound pressure levels to a more usable range of numbers in a
manner similar to the way that the Richter scale is used to measure earthquakes.
In terms of human response to noise, a sound 10 dBA higher than another is
judged to be twice as loud; and 20 dBA higher four times as loud; and so forth.
Everyday sounds normally range from 30 dB (very quiet) to 100 dB (very loud).
Examples of various sound levels in different environments are shown in Figure
7.
36
SOUND LEVELS AND LOUDNESS OF ILLUSTRATIVE NOISES IN INDOOR AND OUTDOOR ENVIRONMENTS
(A-Scale Weighted Sound Levels)
OVER-ALL LEVEL LOUDNESS
Sound Pressure J�dgaw..t
dB(A) Level COMMUNITY HOME OR INDUSTRY r DIff"..t S.Vad
Approx. 0.0002 (outdoor)
Microbar
00101,01111110
Military let AircraftTake-Off With Aftcvb=m OxygmToxh(121) l2GdB(A)32TimcsasLoud
130 UNCOMPORTABLY FmmAircraftCarricr@50FL(l30)
120 LOM Tureo-Fan Aircraft @ Take Off Power Riveting Machine(110) 110 dB(A)16 Times as Lend
110 @200FL (90) Rock-N-Roll Band(108.114)
Jet Flyover @ 1000 Ft.(103)
Boeing 707. DC-8 @ 6080 Ft. 100dB(A)STInexasLoud
100 Before Landing(106)
VERY Bell J-2A Helicopter @ 100 FL(100)
PowcrMowcr(96)
90 LOUD Be 737,DC-9 @ 6090 F4 Newspaper Press(97) 90dB(A)4Tonw as Loud
cillalmcLand'n (97)
Mot..yc1.W2?F4(90)
Car Wash @ 20 FL(89) Food Blander(88)
80 Prop. Airplane Flyovw@ 1OW Ft(88) Milling Machine(95) 80dB(A)271mes as Loud
Dicad Track, 40 MPH @ 50 FL(94)
DieW Train,45 NTH @ 100 FL (83) GarbagaDisposal(80)
70 MODERATELY High Urban Ambient Sound(80) laving Room Music(76)
Passcatger Car,65 MPH @ 25 FL(77) 7OdB(A)
LOUD Freeway @ 50 Ft.From Pavement TV.Audio,Vacuum Clesner
Edge,10:00 AM(16+or- 6)
Cash Register @ 10 Ft.(65-70)
60 Air Conditioning Umt @ 100 Ft.(60) ElectricTypewritcr@ 10FL(64) 60dB(A)1f2asLoud
Dishwashcr=e)@10 FL(60)
1 Con on(60)
so QU]Er LArgcTrms1brmcr;@ 100FL(SO) 50 dB(A)1/4 as Loud_
40 Bird Calls(44) 40 dB(A)11%as Lend
LowerLinaft Urban Ambient Sound(0)
JUSTAUDIBLE (M(AlSodeIntormptod)
THRESHOLD
10 OF HEARING
SOURCE:Reproduced from Melville C.Branch and R.Dalellcland,OutdoorNoisc in the M=wolhan Faviromnent
Published by the City of Us Angeles.1970,p I
FIGU:RE 7
m
MESTREGREVEASSOCIATES Examples of Sound Levels in Different Envir!onments
37
Sound levels decrease as a function of distance from the source as a result of
wave divergence, atmospheric absorption, and ground attenuation. As the sound
wave travels away from the source, the sound energy is spread over a greater
area, dispersing the sound power of the wave. Atmospheric absorption also
influences the levels that are received by the observer. The greater the distance
traveled, the greater the influence and the resultant fluctuations. The degree of
absorption is a function of the frequency of the sound as well as the humidity and
temperature of the air. Turbulence and gradients of wind, temperature and
humidity also play a significant role in determining the degree of attenuation.
Noise has been defined as unwanted sound and it is known to have several
adverse effects on people. From these known, effects of noise, criteria have
been established to help protect the public health and safety and prevent
disruption of certain human activities. This criteria is based on such known
effects of noise on people as hearing loss (not generally a factor with community
noise), communication interference, sleep interference, physiological responses
and annoyance. Each of these potential noise impacts on people are briefly
discussed in the following narratives:
HEARING LOSS is, in general, not a concern in community noise problems. The
potential for noise-induced hearing loss is more commonly associated with
vocational noise exposures in heavy industry or very noisy work environments
with long-term exposure. The Occupational Safety and Health Administration
(OSHA) identifies a noise exposure limit of 90 dBA for 8 hours per day to protect
from hearing loss. Noise levels in neighborhoods, even in very noisy airport
environments near major international airports, is not sufficiently loud to cause
hearing loss.
COMMUNICATION INTERFERENCE is one of the primary concerns in
environmental noise problems. Communication interference includes speech
interference and activities such as watching television. Normal conversational
speech is in the range of 60 to 65 dBA and any noise in this range or louder may
interfere with speech. There are specific methods of describing speech
interference as a function of distance between speaker and listener and voice
level. Figure 8 shows the percent of sentence intelligibility with respect to various
noise levels.
SLEEP INTERFERENCE is a major noise concern in noise assessment and, of
course, is most critical during nighttime hours. Sleep disturbance is one of the
major causes of annoyance due to community noise. Noise can make it difficult
to fall asleep, and can create momentary disturbances of natural sleep patterns
by causing shifts from deep to lighter stages and cause awakening. Noise may
even cause awakening which a person may or may not be able to recall.
38
Extensive research has been conducted on the effect of noise on sleep
disturbance. Recommended values for desired sound levels in residential
bedroom space range from 25 to 45 dBA with 35 to 40 dBA being the norm. The
National Association of Noise Control Officials have published data on the
probability of sleep disturbance with various single event noise levels. Based on
experimental sleep data as related to noise exposure, a 75 dBA interior noise
level event will cause noise induced awakening in 30 percent of the cases.
PHYSIOLOGICAL RESPONSES are those measurable effects of noise on
people which are realized as changes in pulse rate, blood pressure, etc. While
such effects can be induced and observed, the extent is not known to which
these physiological responses cause harm or are sign of harm. Generally,
physiological responses are a reaction to a loud short term noise such as a rifle
shot or a very loud jet overflight.
ANNOYANCE is the most difficult of all noise responses to describe.
Annoyance is a very individual characteristic and can vary widely from person to
person. What one person considers tolerable can be quite unbearable to another
of equal hearing capability. The level of annoyance, of course, depends on the
characteristics of the noise (i.e.; loudness, frequency spectra, time, and
duration), and how much activity interference (e.g. speech interference and sleep
interference) results from the noise.
39
120
110 COMMUNICATION
IMPOSSIBLE
100
90 MAXEVIUM
VOCAL EFFORT
z 'COMMUNICATION
80 DIFFICULT
... ............
0
70 S.:��T+
COMMUNICATION
60 POSSIBLE
ELEVATED
VOICE,LE
50 AREA OF
NEARLY
SPEECH COMMUNICATION
40 1 1111
0 5 10 15 20 25 30
TALKER TO LISTENER DISTANCE IN FEET
FIGURE 8
URSTRE GREVE ASSOCIATES Noise Levels vs. Speech Intelligibility
However, the level of annoyance is also a function of the attitude of the receiver.
Personal sensitivity to noise varies widely. It has been estimated that 2 to 10
percent of the population is highly susceptible to noise not of their own making,
while approximately 20 percent are unaffected by noise. Attitudes are affected
by the relationship between the person and the noise source (is it our dog
barking or the neighbor's dog?). Whether we believe that someone is trying to
abate the noise will also affect our level of annoyance.
6.2 Noise Metric and Assessment Criteria
Community noise is generally not steady state and varies with time. Under
conditions of non-steady state noise, some type of statistical metric is used to
quantify noise exposure over a long period of time. Several rating scales have
been developed for describing the effects of noise on people. They are designed
to account for the known effects of noise on people.
Based on these effects, the observation has been made that the potential for
noise to impact people is dependent on the total acoustical energy content of the
noise. A number of noise scales have been developed to account for this
observation. These scales are: the Equivalent Noise Level (LEQ), the Day Night
Noise Level (LDN), and the Community Noise Equivalent Level (CNEL). These
scales are described in the following paragraphs.
LEQ is the "energy" average noise level during the time period o
f the sample. It is a number that represents a decibel sound level. This constant
sound level would contain an equal amount of energy as a fluctuating sound level
over a given period of time. LEQ can be measured for any time period, but is
typically measured for 15 minutes, I hour or 24-hours.
LDN is a 24-hour, time-weighted annual average noise level. Time-weighted
refers to the fact that noise which occurs during certain sensitive time periods is
penalized for occurring at these times. In the LDN scale, those events that take
place during the night (10 pm to 7 am) are penalized by 10 dB. This penalty was
selected to attempt to account for increased human sensitivity to noise during the
quieter period of a day, where sleep is the most probable activity.
CNEL is similar to the LDN scale except that it includes an additional 5 dBA
penalty for events that occur during the evening (7 pm to 10 pm) time period.
Either LDN or CNEL may be used to identify community noise impacts within the
Noise Element. Example noise environments in terms of the CNEL metric are
shown in Figure 9.
41
CNEL Outdoor Location
—90.
z: .0 Apartment Next to Freeway
3/4 Mile From Touchdown at Major Airport
Downtown With Some Construction Activity
Vs%`—Urban High Density Apartment
—:-7-0--
Urban Row Housing on Major Avenue
—60 Old Urban Residential Area
1.94 Wooded Residential
50.
Agricultural Crop Land
Rural Residential
Wilderness Ambient
30.
FIGURE 9
MESTRE GREVE ASSOCIATES Typical Outdoor CNEL Noise Levels
42
The public reaction to different noise levels varies from community to community.
Extensive research has been conducted on human responses to exposure of
different levels of noise. Figure 10 relates LDN noise levels to community
response from some of these surveys. Community noise standards are derived
from tradeoffs between community response surveys, such as this, and
economic considerations for achieving these levels.
Intermittent or occasional noise such 'as those associated with stationary noise
sources is not of sufficient volume to exceed community noise standards that are
based on a time averaged scale such as the CNEL scale. To account for
intermittent noise, another method to characterize noise is the Percent Noise
Level (L%). The Percent Noise Level is the level exceeded X% of the time
during the measurement period. Percent Noise Levels are another method of
characterizing ambient noise where, for example, L90 is the noise level
exceeded 90 percent of the time, L50 is the level exceeded 50 percent of the
time, and L10 is the level exceeded 10 percent of the time. L90 represents the
background or minimum noise level, L50 represents the average noise level, and
LIO the peak or intrusive noise levels. Examples of various noise environments
in terms of the Percent Noise Levels are shown in Figure 11.
Noise Ordinances have been historically specified in terms of the percent noise
levels. Noise Ordinance limits expressed in terms of percent noise levels can be
converted to Equivalent Noise Levels (Leq) that represent the same regulatory
limit. Ordinances are designed to protect people from non-transportation related
noise sources such as loud music, machinery and vehicular traffic on private
property.
43
COMMUNITY
REACTION
VIGOROUS
COMMUNITY
ACT(ON
MEAN
SEVERAL
THREATS OF
LEGALACTION,
ORSTRONG, ENVELOPE OF
APPEALS TO
LOCAL 90%OF DATA
OFFICIALSTO
STOPNOISE
WIDESPREAD
COMPLAINTS OR
SINGLETHREAT
DATA
OFLEGALACT[ON NORMATJZEDTO:
SPORADIC
COMPLAINTS URBAN RESIDENTIAL
AMBIENT NOISE
SOME PRIOR EXPOSURE
kz�
NO REACTION,
EIS WINDOWS PARTIALLY OPEN
ALTHOUGHNOIS le NO PURE TONE OR-
GENERALLY IMPULSES
NOTICEABLE I f
45 50 55 60 65 70 75 80 85 90
COMMUNITY NOISE EQUIVALENT LEVEL IN dB
F.IGURE 10
MRSTRE GREVE ASSOCIATES Community Responses to Ldn Noise Levels
14
Sound Level (dBA)
LOCATION 20 30 40 so 60 70 so 90
A 3rd Floor Apartment, Next to Freeway
B 3rd Floor HI-Rise, Downtown Los Angeles
C 2nd Floor Tenement, New York City
D Urban Shopping Center
E Popular Beach an Pacific Ocean Aircraft Landing
F Urban Residential Near Major Airport .7
a Urban Residential Near Ocean
H Urban Residential 6mi. to Airport
I Suburban Residential Near R/R Tracks
j Urban Residential
K Urban Residential Near Small Airport "EmEndh�'.. =]—Aircraft Takeoff
L Old Residential Near City Center
M Suburban Residential at City Outskirts
N Small Town Residential Cul-de-Sac
0 Small Town Residential Main Street Wnl�—Maln Street Traffic
p Suburban Residential in Hill Canyon Canyon Traffic
0 Farm Valley
R Grand Canyon, North Rim 111111111111111� �7?r"_Slghtsoelng Aircra
20 30 40 50 60 70 80 90
SOURCE: Community Noise, EPA, 1971 Legend:
—01 80 Percent of
Data
L9qLq0 L50 L101.1
FIGURE
MESTRE GREVE ASSOCIATES Noise Environments in Terms of Percent Noise Levels
5.3 Noise and Land Use Compatibility Guidelines
The purpose of this section is to present information regarding the compatibility
of various land uses with environmental noise. It is from these guidelines and
standards that the City of Newport Beach Noise Criteria and Standards are
developed. Noise/land use guidelines have been produced by a number of
Federal and State agencies including the Federal Highway Administration, the
Environmental Protection Agency, the Department of Housing and Urban
Development, the American National Standards Institute and the State of
California. These guidelines, presented in the following paragraphs, are all
based upon cumulative noise criteria such as LEQ, LDN or CNEL.
The ENVIRONMENTAL PROTECTION AGENCY published in March 1974 a
very important document entitled "Information on Levels of Environmental Noise
Requisite to Protect Public Health and Welfare With an Adequate Margin of
Safety" (EPA 550/9-74-004). Figure 12 presents a table of land uses and
requisite noise levels. In this table, 55 LDN is described as the requisite level
with an adequate margin of safety for areas with outdoor uses; this includes
residences and recreational areas. The EPA "levels document" does not
constitute a standard, specification or regulation, but identifies safe levels of
environmental noise exposure without consideration for economic cost for
achieving these levels.
46
Indoor To Protect Outdoor To Protect
Measure Activity Hearing Loss Against Activity Hearing Loss Against
Inner. Consider. Both Ef- later. Consider- Both Ef-
ference ation fects(b) ference ation facts(b)
Residential with Outside Ldn 45 45 55 55
Space and Farm
Residences Lcq(24) 70 70
Residential with No Ldn 45 45
Outside Space
Leq(24) 70
Commercial Lcq(24) (a) 70 70(c) (a) 70 70(c)
Wide Transportation Lcq(24) (a) 70 (a)
Industrial Leq(24)(d) (a) 70 70(c) (a) 70 70(c)
Hospitals Ldn 45 45 55 55
Leq(24) 70 70
Educational Ldn 45 45 55 55
Lcq(24) 70 70
Recreational Arms Lcq(24) (a) 70 70(c) (a) 70 70(c)
Farm Land and Leq(24) (a) 70 70(c)
General Unpopulated
Land
Code:
a. Since different types of activities appear to be associated with different levels,identification of a
maximum level for activity interference may be difficult except in those circumstances where speech
conummication is a critical activity.
b. Based on lowest level.
c. Based only on hearing loss.
d. An Leq(8)of 75 dB may be identified in these situations so long as the exposure over the remaining 16
hours per day is low enough to result in a negligible contribution to the 24-hour average,Lc�,no greater
than an Lcq of 60 dB.
Note:Explanation of identified level for hewing loss:The exposure period which results in hearing loss
at die identified level is a period of 40 years.
*Refers to energy rather than arithmetic averages.
SOURCE : EPA
FIGURE 12
MWRE GREVE ASSOCIATES EPA Land Uses and Requisite Nois6 Levels
47
The FEDERAL HIGHWAY ADMINISTRATION (FHWA) has adopted and
published noise abatement criteria for highway construction projects. The noise
abatement criteria specified by the FHWA are presented in Figure 13 in terms of
the maximum one-hour Noise Equivalent Level (LEQ). The FHWA noise
abatement criteria basically establishes an exterior noise goal for residential land
uses of 67 LEQ and an interior goal for residences of 52 LEQ. The noise
abatement criteria applies to private yard areas and assumes that typical wood
frame homes with windows open provide 10 dB noise reduction (outdoor to
indoor) and 20 dB noise reduction with windows closed.
The STATE OF CALIFORNIA requires each city and county to adopt Noise
Elements in their General Plans. Such Noise Elements must contain a
noiselland use compatibility matrix. A recommended (but not mandatory) matrix
is presented in the "Guidelines for the Preparation and Content of Noise
Elements of the General Plan," (Office of Noise Control, California Department of
Health, February 1976). Figure 14 presents this recommended matrix.
48
ACTIVITY DESIGN NOISE DESCRIPTION OF ACTIVITY' CATEGORY
CATEGORY LEVEL LEQ
A 57 Tracts of land in which serenity and quiet are of
(Exterior) extraordinary significance and serve an important
public need and where the preservation of those
qualities is essential if the area is to continue to serve
its intended purpose. Such areas could include
amphitheaters,partic ar parks or portions of open
spaces,or historic dis 'cts which are dedicated or
recognized by appropriate local officials for activities
requiring special qualities of serenity and quiet.
B 67 Picnic areas,recreation areas,playgrounds, active
(Exterior) sports areas and parks which are not included in
category A and residences,motels,hotels,public
meeting rooms, schools, churches, libraries, and
hospitals.
C 72 Developed lands,properties,or activities not included
(Exterior) in Category A or B above.
D - For requirements of undeveloped lands see FHWA
PPM 773.
E 52 Residences, motels,hotels,public meeting rooms,
(Interior) schools,churches, libraries, hospitals, and
auditoriums.
FIGURE 13
MWREGREVEASSOCIATES FHWA Noise Abatement Criteria
49
Community Noise Exposure Interpretation
Land Use Category Ldn or CNEL, dB Normally Acceptable
55 60 65 70 75 80 Specified Land Use is Satisfactory,
Based Upon the Assumption that
Residential-Low Density Any Buildings Involved are of
Single Family,Duplex,Mobile Homes Normal Conventional Construction,
Without Any Special Noise Insulation
Requirements.
Residential-Multiple Family M Conditionally Acceptable
New Construction or Development
Transient Lodging-Motels,Hotels Should be Undertaken Only After a
Detailed Analysis of the Noise
Normally Acceptable
Is I factory,
pe ified Land Use- Sabs
S as L Upon the Assumption that
Any B jldm In�olved are of
u gs
0�m I C �0� I Cons7
a onven a truction,
I I Reduction Requirement is Made and
Schools,Libraries,Churches Needed Noise Insulation Features
Hospitals,Nursing Homes Included in the Design. Conventional
Construction, but with Closed
Auditoriums,Concert Halls, VZ7.7, Windows and Fresh Air Supply
Amphitheatres Systems or Air Conditioning, Will
Normally Suffice.
Sports Arena,Outdoor Normally Unacceptable
Spectator Sports
New Construction or Development
Should Generally be Discouraged.
Playgrounds,Neighborhood Parks If New Construction or Development
Does Proceed,a Detailed Analysis of
Golf Courses,Riding Stables the Noise Reduction Requirements
Water Recreation,Cemeteries Must be Made and Needed Noise
Insulation Features Included in the
office Buildings,Business Design.
Commercial and Residential =Z5 = Clearly Unacceptable
Industrial,Manufacturing Utilities 1 11 - I I New Construction or Development
Agriculture 71 Should Generally not be Undertaken.
FIGURE 14 -
MMTRE GREVE ASSOCIATES - Noise/Land Use Compatibility Matrix
50
5.4 Techniques For Mitigation of Community Noise
The sources of noise in Newport Beach can be divided into two basic categories,
transportation sources and non-transportation sources. A local government has
limited direct control of transportation noise at the source. State and Federal
agencies have the responsibility to control the noise from the source, such as
vehicle noise emission levels. The most effective method available to the City to
mitigate transportation noise and reduce the impact of the noise onto the
community is through comprehensive planning that includes noise as a planning
criteria, the inclusion of noise mitigation in project planning and design i.e.,
construction of noise barriers and improved building noise reduction
characteristics.
Mitigation through the design and construction of a noise barrier (wall, berm, or
combination wall/berm) is the most common way of alleviating traffic noise
impacts. Figure 15 illustrates how a noise barrier effect occurs. The effect of a
noise barrier is critically dependent on the geometry between the noise source
and the receiver. A noise barrier effect occurs when the "fine of sight" between
the source and receiver is penetrated by the barrier. The greater the penetration,
the greater the noise reduction.
51
'ell
enter Lin
Structure
Ilk
. . . . . . . . . ..
AMOM
Barrier or WaH Intervening
Structure
Pnter Line
Depressed
A H�m t
lignment
UI.DMIn
FIGURE 15
MESTRE GREVE ASSOCIATES Noise Barrier Effect Illustration
PAGE58 52 ,
Building interior noise levels can also be reduced through design of the structure.
Windows and doors are the most important paths for sound to enter a structure.
Use of sound insulating doors and windows can provide substantial reductions of
interior noise levels.
Noise concerns should be incorporated into land use planning to reduce future
noise and land use incompatibilities. This is achieved by establishing standards
and criteria that specify acceptable limits of noise for various land use*s
throughout the City. These criteria are designed to integrate noise
considerations into land use planning to prevent noise/land use conflicts. Table 1
presents criteria used to assess the compatibility of proposed land uses with the
noise environment. These criteria are the basis for the development of specific
Noise Standards. These standards, shown in Table 2, present the City policies
related to land uses and acceptable noise levels. These tables are the primary
tools which allow the City to ensure integrated planning for compatibility between
land uses and outdoor noise and are described further below.
The Land Use Compatibility Matrix presented in Table 1 presents broad ranges
of compatibility and are intended to be flexible enough to apply to a wide range of
projects and environments. For example, a project in a large undeveloped area
may be evaluated in the compatibility matrix differently than an infill project in a
densely developed area of the City. But in no case would it be desirable for any
land use to have noise exceeding the highest 'normally compatible' noise level
shown in the matrix. This matrix is intended to be used as one of the many
planning factors that used in the land use planning process.
The Noise Standards presented in Table 2 are intended to be much more
specific in terms of project requirements. These standards are intended to be
design performance requirements that are not exceeded. And while the
compatibility matrix covers broad ranges of compatibility, the design standards
are specific and inability to meet the design standards would be inconsistent with
this Element of the General Plan. It should be noted that only the interior noise
standard of 45 CNEL for residential uses is required by the State of California
and it applies only to multi-family projects (California Noise Insulation Standards,
California Administrative Code, Title 24, Part 2 ).
The most limiting factor of the Noise Standards are in the exterior noise
requirements for residential projects. If airport noise levels exceed 65 CNEL
there are no feasible project design methods to mitigate outdoor aircraft noise
exposures, thus precluding residential
development in these areas. This is only a concern in the area of Santa Ana
Heights which is not in the City but is in its sphere of influence. Another area that
the City residential exterior noise standard is limiting is for certain residential
areas, such the peninsula area, where lots and homes are adjacent to a major
arterial with very small setbacks. In such situations providing noise barriers may
present a number of design problems or conflicts with other planning or zoning
53
requirements. There are no general solutions to these specific kinds of conflicts
but must be considered on a site by site basis.
Mixed use projects present other challenges for noise control. Such projects may
become more prevalent along Pacific Coast Highway between Newport
Boulevard and Dover. Mixed use projects can include many types of projects but
are a concern for noise when residential uses are included with a variety of
commercial uses. In such cases the density of the project ensures that noise
levels will be higher than more typical low density suburban residential uses. The
typical design problem with mixed use projects lies in appropriately isolating the
residential uses from the commercial uses which includes anticipating the level of
noise from the commercial uses. For example, a residential use in the vicinity of
a restaurant use may or may not present a noise problem depending on the type
of restaurant, i.e., a night club, quiet formal dining, or fast food establishment. It
is intended that residential uses as part of mixed use projects meet the Noise
Standards and Noise Ordinance limits even though they may not be compatible
as defined in the land use compatibility matrix. Other issues that occur with
mixed use projects are trash pickup. While trash pickup in residential areas
cannot occur before 7 am, such restriction do not apply to commercial areas.
Design of residential portions of mixed use projects must account for this. Again
project specific consideration is required.
The most effective method to control community noise impacts from non-
transportation noise sources is through application of Noise Ordinances or
Regulations. These are designed to protect quiet residential areas from
stationary noise sources. The noise levels encouraged by noise ordinances
assure that noise from mechanical equipment, and other types of non-
transportation noise are not excessive in residential areas.
54
6.0 GLOSSARY
A-WEIGHTED SOUND LEVEL - The sound pressure level in decibels as
measured on a sound level meter using the A-Weighted filter network. The A-
Weighting filter de-emphasizes the very low and very high frequency components
of the sound in a manner similar to the response of the human ear. A numerical
method of rating human judgment of loudness.
AMBIENT NOISE LEVEL - The composite of noise from all sources near and far.
In this context, the ambient noise level constitutes the normal or existing level of
environmental noise at a given location.
COMMUNITY NOISE EQUIVALENT LEVEL (CNEL) - The average equivalent
A-Weighted sound level during a 24-hour day, obtained after addition of five (5)
decibels to sound levels in the evening from 7 p.m. to 10 p.m. and after addition
of ten (10) decibels to sound levels in the night before 7 a.m. and after 10 p.m.
DAY-NIGHT AVERAGE LEVEL (LDN) - The average equivalent A-Weighted
sound level during a 24-hour day, obtained after addition of ten (10) decibels to
sound levels in the night before 7 a.m. and after 10 p.m.
DECIBEL (dB) -A unit for measuring the amplitude of a sound, equal to 20 times
the logarithm to the base 10 of the ratio of the pressure of the sound measured to
the reference pressure, which is 20 micropascals.
dBA -A-weighted sound level (see definition above)
EQUIVALENT SOUND LEVEL (LEQ) - The sound level corresponding to a
steady noise level over a given sample period with the same amount of acoustic
energy as the actual time varying noise level. The energy average noise level
during the sample period.
FREQUENCY - The number of times per second that a sound pressure signal
oscillates about the prevailing atmosphere pressure. The unit of frequency is the
hertz. The abbreviation is Hz.
INTRUSIVE NOISE - That noise which intrudes over and above the ambient
noise at a given location. The relative intrusiveness of a sound depends upon its
amplitude, duration, frequency, and time of occurrence, and tonal or
informational content as well as the prevailing ambient noise level.
L10 - The A-Weighted sound level exceeded 10 percent of the sample time.
Similarly L50, L90, L99, etc.
55
NOISE - Any unwanted sound or sound which is undesirable because it
interferes with speech and hearing, or is intense enough to damage hearing, or is
otherwise annoying. The State Noise Control Act defines noise as "...excessive
undesirable sound......
NOISE ATTENUATION - The ability of a material, substance, or medium to
reduce the noise level from one place to another or between one room and
another. Noise attenuation is specified in decibels.
NOISE EXPOSURE CONTOURS - Lines drawn around a noise source indicating
constant or equal level of noise exposure. CNEL and Ldn are typical metrics
used.
NOISE REFERRAL ZONES - Such zones are defined as the area within the
contour defining a CNEL level of 60 decibels. It is the level at which either State
or Federal laws and standards related to land use become important and , in
some cases, preempt local laws and regulations. Any proposed noise sensitive
development which may be impacted by a total noise environment of 60 dB
CNEL or more should be evaluated on a project specific basis.
NOISE SENSITIVE LAND USE - Those specific land uses which have
associated indoor and/or outdoor human activities that may be subject to stress
and/or significant interference from noise produced by community sound
sources. Such human activity typically occurs daily for continuous periods of 24
hours or is of such a nature that noise is significantly disruptive to activities that
occur for short periods. Specifically, noise sensitive land uses include:
residences of all types, hospitals, rest homes, convalescent hospitals places of
worship and schools.
SOUND LEVEL (NOISE LEVEL) - The weighted sound pressure level obtained
by use of a sound level meter having a standard frequency-filter for attenuating
part of the sound spectrum.
SOUND LEVEL METER - An instrument, including a microphone, an amplifier,
an output meter, and frequency weighting networks for the measurement and
determination of noise and sound levels.
APPENDICES:
Technical Component of the Noise Element (bound separately)
56
TECHNICAL APPENDIX
OFTHE
NOISE ELEMENT
FORTHE
CITY OF NEWPORT BEACH
October 1994
Proarrd by
MESTRE GREVE ASSOCIATES
280 Newport Center Drive, Suite 230
Newport Beach, CA 92660
Table of Contents
1.0 Noise Element Requirements.......................................................A-3
2.0 Methodology ..............................................................................A- 5
2.1 Measurement Procedures..................................................A- 5
2.2 Contour Modeling............................................................A- 6
3.0 Results........................................................................................A-7
3.1 Measurement Results........................................................A-7
3.2 Noise Contours................................................................A-7
4.0 Glossary of Terms.......................................................................A- 11
NEWMRTBEACHNOISHELUENT TECHMCAL APPENDIXPAGE A-2
CITY OF NEWPORT BEACH NOISE ELEMENT
TECHNICAL APPENDIX
1.0 NOISE ELEMENT REQUIREMENTS
The State of California has mandated that each county and city prepare a Noise Element
as part of its General Plan. Section 65302(f) of the California Government Code requires
specifically:
"(0 A Noise Element shall identify and appraise noise problems in the
community. The noise element shall recognize the guidelines established by
the Office of Noise Control in the State Department of Health Services and
shall analyze and quandA to the extent practicable, as determined by the
legislative body, current and projected noise levels for all of the following
sources.,
Highways andfreeways.
Primary arterials and major local streets.
Passenger andfreight on line railroad operations and ground
rapid transit systems.
Commercial, general aviation, heliport, helistop, and mifitwy
airport operations, aircraft overflights,jet engine test stands,
and all other ground facilities and maintenance finctions
related to airport operation.
Local industrial plants, including, but not limited to, railroad
classification yards.
Other ground stationary noise sources identified by local
agencies as contributing to the community noise environment.
Noise contours shall be shown for all of the sources and stated in terms of
community noise equivalent level(CNEL) or day-night average level(EDN).
Yhe noise contours shall be prepared on the basis of noise monitoring or
following generally accepted noise modeling techniques for the various
NEWPORT BEACH NOISE ELBENT TECHAMAL APPENDMPAGE A- 3
sources identified in paragraphs (1) to (6), inclusive. Yhe noise contours
shall be used as a guide for establishing a pattem of land uses in the land
use element that minimizes the exposure of community residents to excessive -
noise. Yhe Noise Element shall Include implementation measures and
possible solutions that address existing andforeseeable noise problems, if
any. Yhe adopted noise element shall serve as a guideline for compliance
-with the state's noise Insulation standarzb."
The State Guidelines for Preparation and Content of Noise Elements of the General Plan
indicates that the Noise Element should present the noise environment in terms of noise
contours. For those areas identified as containing noise-sensitive facilities, the noise
environment is determined by monitoring. The purpose of this Technical Appendix is to
provide background and supporting information for the City of Newport Beach Noise
Element. This Appendix contains background data including the methodology in
determining the noise environment including measurement and modeling results.
AWWORT BEAM NOISE ELM4W TEChWCALAMMLYPAGE A- 4
2.0 METHODOLOGY
The noise environment in Newport Beach was modeled using a comprehensive noise
measurement survey of existing noise sources and incorporating these results into
computer noise models (it is, of course, impossible to measure future noise levels so we
must rely on computer noise models for future noise estimates). Thenoise environment is
commonly presented graphically in terms of lines of equal noise levels, or contours. The
following paragraphs detail the methodology used in the above.
2.1 Measurement Procedure
Thirty eight sites were selected for measurement of the noise environment in Newport
Beach. A review of noise complaints and identification of major noise sources in the
community provided the initial base for development of the community noise survey. The
measurement locations were selected on the basis of proximity to major noise sources and
noise sensitivity of the land use. The measurement locations are depicted in Exhibit 1.
Noise measurements at five of the sites (sites 24 & 28-3 1) along the beach were repeated
once during a summer weekday and once again during a summer weekend.
The Newport Beach Noise Element measurement survey utilized the BrGel & Kjaer 2231
automated digital noise data acquisition system for short-term (15 min.) LEQ readings.
This instrument automatically calculates both the Equivalent Noise Level (LEQ) and
Percent Noise Level (I.Plo) for any specific time period. The noise monitor was equipped
with a BrUel & Rjaer Type 4155 1/2 inch electret microphone and was calibrated with a
Brijel &Kjaer Type 4230 calibrator with calibrations traceable to the National Bureau of
Standards. Calibration for the calibrators are certified through the duration of the
measurements by Brael & Kjaer. This measurement system satisfies the ANSI (American
National Standards Institute) Standards 1.4 for Type 1 precision noise measurement
instrumentation.
NEWPORITFUCH NOISE EIMENT TECHWAL APPEADIXPAGE A- 5
2.2 Computer Contour Modeling
The traffic noise levels projected in the Noise Element were computed using the flighway
Noise Model published by the Federal Mghway Adnuird'stration (7HWA Highway Traffic
Noise Prediction Model,"FHWA-RD-77-108, December 1978). The FHWA Model uses
traffic volume, vehicle mix, vehicle speed, and roadway geometry to compute the LEQ
noise level. A computer code has been written which computes equivalent noise levels
for each of the time periods used in CNEL. Weighting these noise levels and summing
them results in the CNEL for the traffic projections used. The traffic data used to project
these noise levels are derived from the current update to the Circulation Element for the
City. The traffic mix data for the arterials are based on measurements for roadways in
Southern California and are considered typical for arterials in this area.
The existing roadway noise contours are shown in Exhibit 2. These contours are based on
existing traffic volumes that were obtained from the City of Newport Beach Traffic
Engineering Division. The existing traffic volumes are the winter, 1991 traffic counts.
There are some roadway links in the City of Newport Beach for which traffic counts were
not made during winter, 1991. For these roadway links, the summer and fall, 1986, and
summer, 1988 traffic counts were used to supplement the winter, 1991 traffic counts.
The future traffic noise contours are shown in Exhibit 3. These contours are based on
future year 2010 projected traffic volumes generated by Austin-Foust Associates in
October, 1991.
AFEWPORT BEACH NOISE ELMEW TECHN=APPENDUPAGE A- 6
3.0 RESULTS
3.1 Measurement Results
The first session of the noise measurement program was conducted on four separate days.
The survey was taken on April 9, 17, 24, and May 7, 1991, at thirty eight locations
throughout the City. As mentioned earlier, measurements at five of the sites
(measurement sites 24, 28, 29, 30, and 3 1)were repeated twice during the summer: once
during a typical summer weekdgy (August 29, 1991) and once again during a typical
summer weekend (August 31, 1991). Table 1 fists the monitoring site numbers, location,
land use, and measurement time and date of each site. The results of the ambient short-
term noise measurements at each site are depicted in Exhibit 4 (Parts 1-6). These figures
also depict the primary noise source affecting the noise environment. The quantities
measured were the Equivalent Noise Level (Leq), the maximum noise level (Lmax) and
the Percent Noise Levels(Vlo).
3.2 Noise Contours
The existing and future noise levels in the city were established in terms of the CNEL
indices by modeling all of the traffic noise sources for the existing and future traffic and
speed characteristics. The results for the roadways are presented in tabular format in the
following tables. The Existing Year 1991 Winter contours without noise barriers are
presented in Table 2 and the Existing Year 1991 Winter contours with noise barriers are
presented in Table 3. The Future Year 2010 contours with noise barriers are
presented in Table 4 and the Future Year 2010 contours with noise barriers are presented
in Table 5. The distances to the CNEL contours for the roadways in the vicinity of
Newport Beach are given in these tables. These represent the distance from the centerfine
of the road to the contour value shown. Note that these tables do not include the
NEWPORTBEAMNOISHELEAENT TECHArICALAPPENDIXPAGE A- 7
mitigating effect of noise barriers or topography. The traffic mix assumptions used in this
analysis are shown in Table 6.
Table I
LOCATION, DATE & TIME OF AMBIENT NOISE MEASUREMENTS
SITE LAND
NO. LOCATION USE DATE TIME
I Point Conception&El Capitain Dr. Residential Apr-09 11:30 AM
2 San Miguel west of Yacht Coquet Residential Apr-09 12:00 PM
3 Mailbox inlet on Ford,E of Newport Hills Residential Apr-09 12:30 PM
4 Newport Hills Dr. W, West of Port Wheeler Residential Apr-09 1:15 PM
5 Bison&Belcourt Dr.North Res/Com Apr-09 2:00 PM
6 End of Almond Court(cut de sac) Residential Apr-09 2:30PM
7 Eastbluff Dr.North East of Vista deloro Apt/Homes Apr-09 3:00 PM
8 Crown& Sea Lane Residential Apr-09 3:30 PM
9 Marguerite,North of Saucilito Residential Apr-09 4:15 PM
10 Front Yard of 515 Marguerite Residential Apr-09 4:45 PM
11 Off of PCH, across street from 326 Seaward Residential Apr-17 10:30 AM
12 220 Marguerite, in front of house. Residential Apr-17 11:00 AM
13 Vacant lot on Bayside Dr. Residential Apr-17 11:30 AM
14 Malabar Dr, &Bonnie Doone Residential Apr-17 12:00 PM
15 SW comer of Patolita&Bonnie Doone Residential Apr-17 12:30PM
16 Dolphin Terrace&Bonnie Doone Terrace Residential Apr-17 1:00 PM
17 Park&Onyx Residential Apr-17 1:30 PM
18 1501 Mariner Residential Apr-17 2:00PM
19 Holiday&Irvine, 1742 Irvine Ave. Residential Apr-17 2:30 PM
20 527 Irvine Ave. Res/HSchool Apr-17 3:00 PM
21 "Lookout Point" across from 1800 Ying Residential Apr-17 3:30PM
22 Superior& 15th,East side of Superior Apt/Com Apr-17 4:00 PM
23 Superior, South of Ticonderoga ApttTwnhm Apr-17 4:30PM
24 Seashore Dr. between Cedar&Walnut kesffich Prkg Apr-24 10:15 AM
25 North side of PCH, between Cedar&Walnut Res/Com Apr-24 10:45 AM
26 Lido Sands& Caryl Residential Apr-24 11:15 AM
27 NE comer of Superior&PCH Res/Com Apr-24 11:45 AM
28 41 st&West Balboa Residential Apr-24 12:15 PM
29 E Balboa between Alvarado& Coronado Residential Apr-24 12:45 PM
30 End of Adams on Channel walkway Com/Boat docks Apr-24 1:15 PM,
31 E Balboa between E&F streets, 1319 Balboa Residential Apr-24 1:45 PM
32 Via Lido Nord&Via Orvieto Res/Scenic Apr-24 2.,15 PM
NEWPORTBIUCHNOISEELEWNT TECHMCAL APPENDIX PAGE A- 8
Table I (continued)
LOCATION, DATE & TIME OF AMBIENT NOISE MEASUREMENTS
SITE LAND
NO. LOCATION USE DATE TIME
33 Via Antibes& Via Lido Nord Res/Scenic Apr-24 2:45 PM
34 Via Malaga& Via Lido, Sailing parking lot Commercial Apr-24 3:15 PM
35 Deanza Trailer Park, Old site#9 Mobile hm prk Apr-24 3:45 PM
36 Deanza Trailer Park, end of Mayflower Mobile hm prk Apr-24 4:15 PM
37 Comer of Dover Lane&Kent Residential Apr-24 4:45 PM
38 End of Carob St. Residential May-07 4:00 PM
SUMVER SESSION(WEEKDAY)
24 Seashore Dr. between Cedar&Walnut Res/Bch Prkg Aug-28 11:00 AM
28 41 st&West Balboa Residential Aug-28 11:30 AM
29 E Balboa between Alvarado & Coronado Residential Aug-28 12:00 PM
30 End of Adams on Channel walkway Com/Boat docks Aug-28 12:30 PM
31 E Balboa between E&F streets, 1319 Balboa Residential Aug-28 1:00 PM
SUAA4ER SESSION(WEEKEND)
24 Seashore Dr. between Cedar&Walnut Res/Bch Prkg Aug-31 12:15 PM
28 41 st&West Balboa Residential Aug-31 12:40 PM
29 E Balboa between Alvarado& Coronado Residential Aug-31 1:10PM
30 End of Adams on Channel walkway ' Com/Boat docks Aug-31 2:05 PM
31 E Balboa between E &F streets, 1319 Balboa Residential Aug-31 1:33 PM
*Note: Time listed above is the start timefor each of the 15 minute measurements.
NEKTORTBEACH NOISE ELMENT TECHMCAL APPENDIXPAGE A- 9
Table 6
Traffic Distribution per Time of Day*
'PERCENT OF ADT
VEHICLE DAY EVENING NIGHT
TYPE 7am-7pm 7pm-10pm 10pm-7am
Automobile 75.51 12.57 9.34
Medium Truck 1.56 0.09 0.19
Heavy Truck 0.64 0.02 0.08
Note: For State Route 73 and the San Joaquin Hills Transportation Corridor,
a 7%truck mix was used(3.5%Medium Trucks, 3.5%Heavy Trucks),
AFEWORTBRACHNOISHELMENT 7ECHNICAL APPMOMPAGE A- 10
4.0 GLOSSARY OF TERMS
A-WEIGHTED SOUND LEVEL - The sound pressure level in decibels as measured on a
sound level meter using the A-weighted filter network. The A-weighting filter de-
emphasizes the very low and very high frequency components of the sound in a manner
similar to the response of the human ear. A numerical method of rating human judgment
of loudness.
ANMIENT NOISE LEVEL - The composite of noise from all sources near and far. In this
context, the ambient noise level constitutes the normal or existing level of environmental
noise at a given location.
CONMUNITY NOISE EQUIVALENT LEVEL(CNEL) - The average equivalent A-weighted
sound level during a 24-hour day, obtained after addition of five (5) decibels to sound
levels in the evening from 7 p.m. to 10 p.m. and after addition of ten (10) decibels to
sound levels in the night before 7 a.m. and after 10 p.m.
DAY-NIGHT AVERAGE LEVEL (LDN) - The average equivalent A-weighted sound level
during a 24-hour day, obtained after addition of ten (10) decibels to sound levels in the
night before 7 a.m. and after 10 p.m.
DECEBEL (dB) - A unit for measuring the amplitude of a sound, equal to 20 times the
logarithm to the base 10 of the ratio of the pressure of the sound measured to the
reference pressure, which is 20 micro-pascals.
dB(A) -A-weighted sound level (see definition above)
EQUIVALENT SOUND LEVEL (LEQ) - The sound level corresponding to a steady noise
level over a given sample period with the same amount of acoustic energy as the actual
time varying noise level. The energy average noise level during the sample period.
FREQUENCY - The number of times per second that a sound pressure signal oscillates
about the prevailing atmosphere pressure. The unit of frequency is the hertz. The
abbreviation is Hz.
INTRUSIVE NOISE - That noise which intrudes over and above the ambient noise at a
given location. The relative intrusiveness of a sound depends upon its amplitude, duration,
frequency, time of occurrence, and tonal or informational content as well as the prevailing
ambient noise level.
L% - The A-weighted sound level exceeded during a certain percentage of the sample
time. For example, L10 is the sound level exceeded 10 percent of the sample time.
Similarly L50,L90, L99, etc.
NEWPORTBEACH NOISE ELMENT TECEMCAL APPENDIXPAGE A- I I
NOISE - Any unwanted sound or sound which is undesirable because it interferes with
speech and hearing, or is intense enough to damage hearing, or is otherwise annoyin&
The State Noise Control Act defines noise as 11...excessive undesirable sound...". -
NOISE ATTENUATION - The ability of a material, substance, or medium to reduce the
noise level from one place to another or between one room and another. Noise
attenuation is specified in decibels.
NOISE EXPOSURE CONTOURS - Lines drawn around a noise source indicating constant
or equal level of noise exposure. CNEL and LDN are typical metrics used.
NOISE REFERRAL zons - Such zones are defined as the area within the contour
defining a CNEL level of 60 decibels. Itis the level at which either State or Federal laws
and standards related to land use become important and , in some cases, preempted local
laws and regulations. Any proposed-noise sensitive development which may be impacted
by a total noise environment of 60 dB CNEL or more should be evaluated on a project
specific basis.
NOISE SENSITIVE LAND USE - Those specific land uses which have associated indoor
and/or outdoor human activities that may be subject to stress and/or significant
interference from noise produced by community sound sources. Such human activity
typically occurs daily for continuous periods of 24 hours or is of such a nature that noise
is significantly disruptive to activities that occur for short periods. Specifically, noise
sensitive land uses include: residences of all types, hospitals, rest homes, convalescent
hospitals places of worship and schools.
PERCENT NOISE LEVELS-See LO/o.
SINGLE EVENT NOISE EQUIVALENT LEVEL (SEWEL) - The SENEL is essentially
equivalent to the Sound Exposure Level (SEL). The SENEL is defined as that level
which, lasting for one second, has the same acoustic energy as the transient noise.
SOUND LEVEL(NOISE LEVEL) - The weighted sound pressure level obtained by use of a
sound level meter having a standard frequency-filter for attenuating part of the sound
spectrum.
SOUND LEVEL METER- An instrument, including a microphone, an amplifier, an output
meter, and frequency weighting networks for the measurement and deterniination of noise
and sound levels.
NE[WORTBEACH NOISE ELEAEW TECWCAL APPEXWPAGE A- 12
-7
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FIGURE I
UESTREGREVEASSOCIATES Noise Measurement Locations
F IRVINE
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Exhibit 2
Existing Year 1991 Roadway CNEL Noise Contours
00
65
so
so
rz
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SS65 60
60
65
60
so
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160
Up
-Go
so
-60 64�
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Exhibit 3
MESTRE GREVE ASSOCIATES Future Year 2010 Roadway CNEL Noise Contours
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 go Sources
Point Conception & El Capitan Dr. Res 511 Truck Birds,distant aircraft,S
local traffic
2 San Miguel W. of Yatch Coquette Res 60 Delivery Truck Traffic on SanMiguel
3 Ford E. of Newport Hills Res L I - 61 Car horn Traffic on Ford
Traffic on MacArthur Blvd&
4 Newportflills Dr. W. & Port Wheeler Res Tiruck Newport Hills
Birds,traffic on Bison,jets
5 Bison & Belcourt Dr. North ReslCom firorn John Wayne Airport,&
hallcoplan;Imin El Toro
.lots frant.1ohn Wayne
6 End of Almond Court (cul de sac) Res 571,' jet Airport,neighborhood traffic,
&traffic an Jamboree
1 62 1 Traffic on Easibluff Dr.,jets
,, '� I JellFirecracker train John Wayne Airport
7 Eastbluff or N.E. of Vista Deloro Res I
Traffic on MacArthur
67 Traffic
8 crown & Sea Lane Res
9 Marguerite, N. of Saucilito Res 66 Traffic Traffic
63 Car horn Traffic
10 Front Yard of 515 Marguerite Res Q
Legend: Leg Cause Of Lmax Exhibit 4-1
L99 L90 L10 Lmax
Graphic Summary of Ambient Measurement Results
WSTREGREVEASSOCIATES i i
Sound Level (dBA) Noise
site Location Land Use 40 50 60 70 80 90 sources
Off PCH, across St. from 326 Seaward Res Traffic TratficonPCH
12 220 Marguerite, in front of house Res 60 Oeachduap TrafficonMaquedle
truck
13 Vacant lot on Bayside Dr. Res 63 Truck Traffic an Baysido a birds
58 jet Trafficonhfalahar&Elowle
14 Malabar Dr. & Bonnie Doone Res Doono Terrace,windin Imes
60 jet Local Uallic,PCH-trallic,
15 S.W- corner of Patolita & Bonnie Doone Res Jets.IdWanes
Light neighborhood traffic�
16 Dolphin.Terrace & Bonnie Doone Res 63 jot birds,loalblavverS jets
17 Park & onyx Res jet Tal1c.hanymning,a lots
18 1501 Mariner Res UpS Truck Trairm&crows
19 Holiday & Irvine, 1742 Irvine Ave. Res 71 v� Trash truck Tfaffic&lots
'rraffic on Irvine,distant
2 0 527 Irvine Ave. ReslSchool 64 Truck Jots&hefibopters,lawn
nvmm
Legend: L Cause Of Linax Exhibit 4-2
L99 L90 LIO Lmav
Graphic Summary of Ambient Measurement Results
IS
A.ESTREGREVEASSOCIVES I i
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 go Sources
21 "Lookout Point" across 1800 King Res 65 1 -- Const. Traffic.mad construction,
Tractor helicopters, airplanes
22 Superior & 15th, E side of Superior Res 70 Truck. Traffic
Motorcycle
23 Superior, S. of Ticonderoga Res zi Traffic Traffic
24 Seashore between Cedar & Walnut Resli3ch Prkg 5'7 TrafficonPCH
63 Truck on PCH Traffic on PCH,phone line
25 N. side PCH between Cedar & Walnut ReslCom -1------T 7777 777 1 work,A airplanes
Local traffic.light PCH
26 Lido Sands & Caryl Res 1 , *" 1 44 1 Car on Caryl traffic noise
27 N.E comer of Superior & PCH ReslCom 55 PCH tra PCH traffic&construction
T— i
28 41st & W Balboa Res 61 School bus Traffic an Wboa
Traffic,jots, helicopters
29 E Balboa between Alvarado & Coronado Res 58 L ,1." I Traffic overshorefine
T T-
Beat work,boat engines,
30 End of Adams on Channel Walkway Com/Dock 51 jet
L Jots,helicopters,A birds
L
Legend. L Cause Of Lmax Exhibit 4-3
L99 L90 LIO Lmax L LGraphic Summary of Ambient Measurement Results
.WSTRE GREVEASSOCIATES
Sound Level (dBA) Noise
Site Location Land Use 40 60 60 70 80 90 Sources
31 1319 Balboa between E& F St. Res t� 2 Tta#;c on Baboa,dog
Davidsons barkkig
32 Via Lido Nord& Via-Orvieto ResiScenic Consiniction,cars on Via
Lido Nord.airplanes.jots
33 Via Antibes& Via Lido Nord ReslScenic 45 1,� Traffic 'nallk,lots
34 Via Malaga & Via Lido, Sailing Prkng Corn Traffic Traffic
35 Deanza Trailer Pk, Old Site#9 Mobile Hm Pk TraffconPCH Patfi:on PCH
36 Deanza Trailer Pk, (9)Mayflower Mobile Hm Pk 53 skens TraftcnPCH
37 Corner of Dover Lane& Kent Res 58 Chkiyalring,car Trafficajols
'v
38 End of Carob St. Res C�W Gam�,let Traffic on Jamboree A
Urds
Legend. h1kil Exhibit 4-4
L99 L90 LIO LMIU
Graphic Summary of Ambient Measurement Results
MESTRE WIEVEASSOCIATES
Sound Level (dBA) Noise
site Location Land Use 40 50 60 70 80 90 Sources
--r-
59 a Traffic on PCH.pacple
24 Seashore between Cedar& Walnut Resfflch Prkg ru walking&doing by
69 OCTOBus Tralk an W Balboa
28 41st& W Balboa Res S people walking by
TI
29 E Balboa between Alvarado & Coronado Res Uck Traffic on E.Balboa,aircraft
30 dams on Channel Wa&way ComlDock 54 Pacpla.boats.aircraft.A
End of A ChiAd child
Thiffic on Balboa,aircraft,
31 13Y 9 Balboa between E& F streets Res 'People Talking helicopter, power tools,&
people walking by
Legend: Le CauseOlLmax
L99 L90 LJO Lmav Exhibit 4-5
Ambient Measurement Results (Summer-Weekday)
MESTREGREVEASSOCIATES
Sound Level (dBA) Noise
Site Location Land Use 40 50 60 70 80 90 Sources
59 Traffic Traffic on PCH,people
24 Seashore between Cedar& Walnut Resfflch Prkg walking by,A aircraft
70 sh,,ting Traffic on W.Saboa
28 41st& WBalboa Res A people walking by
66 Sus Dalfic an W.Itaiboa,aircraft
29 E. Balboa between Alvarado & Coronado Res people talking.a car alarm
30 End of Adams on Channel Walkway ComlDock 57 People.boats.aircraft.A
dxV
31 1319 Balboa between E& Fstreets Res 64 fay*j Vahkie Traffic W Balboa.arraaft.
haficapter. apowe
wamg by
Legend. L Cause Offmax Exhibit 4-6
L99 Lw LIO L=
MESTRE GREVE ASSOCIATES Ambient Measurement Results (Sumnier-WeekendA)
Table 2
MESTRE GREVE ASSOCIAM
NEWPORT BEACHNOISE ELEMENT
EXISTING YEAR 1991 W1111TER W10 BARRIER CNEL CONTOUR SPREADSHEET
11/18/91
IndourKey., Orange County Arterial Mix 1
Frowsy w15%Tirucks(2.5%MT 2.5%H77 2
Freeway wl 7%Trucks(3.5%MT,3.5%H77 3
Distance to CNEL Contour(it) ADT
Roadway Link 70CNEL SS CNEL 6OCNEL (xlOGO) Speed Index CNEL100 Baff.Aft.
Newport Boulevard illifthSttol-losphalild 91 196 423 so 45 1 69.4 a
tHospital Rd to Pacific Coast Hwy 99 214 462 57 45 1 70.0 0
Pacific Cowl Highway to Me Lido so 186 400 46 45 1 69.0 0
Via Lido to Balboa 68 146 314 32 46 1 67.5 0
Superior Avenue Newport to Placentia 46 go 214 18 45 1 615.0 0
Placentia to Pacific Coast Highway 67 124 267 25 45 1 66.4 0
Balboa Boulevard Pacific Coast Highway to 38th Street 46 99 214 18 45 1 65.0 0
38th Street to 32nd Street 43 92 198 is 45 1 64.4 0
32nd Street to 21fth Street 43 92 198 16 45 1 64A 0
28th Street to Newport Blvd 39 84 181 14 45 1 63.9 0
East of Newport Blvd 54 117 252 23 45 1 66.0 0
Campus Drive Jamboree MacArthur 39 84 lei 14 45 1 63.9 0
MacArthur to Dove St 54 117 252 23 45 1 66.0 a
Dove Of to Quall st so 130 281 27 45 1 66.7 0
Quafl Of to Bristol 57 124 267 25 45 1 66.4 0
Irvine Boulevard Bristol to University 73 too 340 36 45 1 ia.0 0
University to 23rd Street 77 166 359 39 45 1 68.3 0
23rd Street to 22nd Street 77 166 359 39 45 1 08.3 0
22nd Street to 1 Bill Street 72 155 334 35 45 1 67.8 0
lath Street to 171h Street 62 133 288 28 45 1 66.9 0
17th Street to loth Street 46 99 214 is 45 1 65.0 0
loth Street to loth Street 39 84 181 14 45 1 63.9 0
Wastcliff Drive -IrvIne Ave to Doveir Or 49 107 230 20 45 1 65.4 0
Dover Drive **Imlna Ave to WastclIff Or 29 63 135 9 45 1 61.9 0
-Westdiff Dr to Cliff Or 62 133 288 28 45 1 66.9 0
-0iff Or to Pectic Coast Highway 65 140 301 30 45 1 67.2 0
Birch Street MacArthur to Von Karmen 31 67 145 10 45 1 62.4 0
Von Korman to Jamboree 33 72 154 11 4S 1 62.8 0
Bristol street Irvino to Birch 51 110 237 21 45 1 65.s 0
Birch to Jamboree 46 99 214 is 45 1 65.0 6
North Bristol Street I"Ine to Birch 54 117 262 23 45 1 66.0 0
Birch to Sptuca St 48 103 222 19 45 1 65.2 0
Spruce St to Jamboree 39 84 lei 14 45 1 63.9 0
Jamboree Road Campus to Birch 69 149 321 33 45 1 67.6 0
Birch to MacArthur 60 130 281 27 45 1 66.7 0
MacArthur to Brislat St N. 62 133 288 28 45 1 66.9 0
Bristol St N.to Bristol St lie 255 550 74 45 1 71.1 0
Bristol SI to University Or 97 209 451 55 45 1 69.8 0
UnivarsIty Or to Olson 87 188 406 47 45 1 69.1 0
Bison to Ford 87 188 406 47 45 1 69.1 0
Ford to San Joaquin Hills 86 186 400 46 45 1 69.0 0
San Joaquin Hills to Back Say Or 75 161 346 37 45 1 68.1 0
Back Say Or to Pacific Cowl Highway 73 iss 340 36 45 1 68.0 0
Bayside,Drive Pacific Cioast Highway to Marino Ave 39 84 181 14 45 1 63.9 0
Marine Ave to El Pavoo Or 29 63 13S 9 45 1 61.9 0
Ef Pasco Dr to Carnation Ave 27 so 125 a 45 1 61.4 0
Carnation Ave to Marguerite 17 36 79 4 45 1 58.4 0
MacArthur Boulevard 'Campus Or to Birch St 60 130 281 27 46 1 66.7 0
*Birch St to Von Kamnan Ave 49 107 230 20 4S 1 65.4 0
Won Kerman Ave to Jamboree Blvd 56 120 259 24 45 1 66.2 0
*Jamborw Blvd to Universtry Or 46 99 214 is 45 1 65.0 Q
'University Or to Bison Ave 104 224 483 61 45 1 70.3 0
'Bison Ave to Ford Rd 104 224 483 61 45 1 70.3 0
*Ford Rd to San'Joaquln Hills Rd 94 202 434 52 45 1 69.6 0
Sm,Jooqu[n Hits to San Wouel 73 156 340 36 45 1 MCI 0
San Miguel to Pacific cowl Highway M 152 327 34 45 1 67.7 0
NEWPORT BEACH NOISE ELEVENT TECHNICAL APPLNDIX
Table 2(contlnued)
AIESMEOREVEASSOCIATrS
NEWPORI'SEACHNOISEELEW.Ur
musnw YEAR iggi wthm Wo unitten cNEL comrounsPREADsHEEr
11/1&W
IndekK@y.- Or&yg9 County Arrarlaf Mix I
Ffeaway W/5%TAXPor(25%MT 2.5%HT) 2
Ffff WRY W 7%Trucks(a 5%MT,3.5%Hn 3
Distance to CNEL Contour(n) ADT
Roadway Link 70CNEL 85 CNrL 6OCNEL (xIO60) Speed Index CNELIGO Barr.Att.
Von Korman Avenue campus to Birch 33 72 154 11 45 1 Gas 0
Birch to MacArthur 25 63 114 7 45 1 ao.9 0
Olson Avenue Jamboree to Camalback 25 53 114 7 45 1 60.9 a
Chunalback to MacArthur 27 GO 125 a 45 1 61A 0
Ford Road Jamboree to MacArthur 25 63 114 7 45 1 60.9 0
San Joaquin Hills Road Jamboree to Santa Cruz 48 99 214 is 45 1 65.0 0
Santa Cruz 10 MacArthur 37 00 172 13 45 1 63.5 0
MacArthur to Son Miguel 39 84 181 14 45 1 83.9 0
Pecifte Coast Highway wootorprospect SI 196 423 so 45 1 69A 0
Pmpact to Superior 84 ISO sag 44 45 1 68.8 0
Superior to Newport 69 149 321 33 45 1 67.6 0
Newport to Tustin 97 2Dg 451 55 45 1 69.8 a
Tustin to Madrid Or 92 199 429 51 45 1 89.6 0
Madrid Or to Dover 90 194 418 49 45 1 6913 0
Dover 10 Jamboree 99 214 462 57 45 1 70.0 0
Jamboree to Newport Canter Or 62 178 303 43 45 1 68.7 0
Newport Cqn W Or to MacArthur 70 164 352 38 45 1 68.2 a
MacArthur to Marguotho 92 199 429 61 45 1 69.5 0
Ent or Marguerite 60 172 371 41 45 1 68.S 0
SR-73 Campus to Jamboree 218 458 1005 as 55 3 76.0 0
1988 Summer Traffiv Volumes
I95GF9d Taft Volumes
t 1986summ"Traffiovolumas
NEWPORTBEACHNOISSECEMEM TECHNICALAPPEMM
Table 3
MESTRE GREVE ASSOCIATES
NEWPORT BEACH NOISE ELEMENT
EXISTANG YEAR 199 1 WINTER W1 BA RRIER CNEL CONTOUR SPREADSHEEr
11/1"i
IndoxKey: Orange CounryArforialMitir 1
Frowsy W15%Trucks(2.5%Mr.2.5%HT) 2
Froway W17%Truck$(as%MT.2.5%117) 3
Distance to CNEL Centaur(Ift) ADT
Roadway Link 70 CNEL 65 CNEL 60 CNEL (xlG00) Spsed Index CNEL100 Barr.Att. Location
Newport Boulevard ti Sth St to Hospital Rd 91 196 423 56 45 1 69.4 0
tHosplial Rd to Pacific Coast Hwy 99 214 462 57 45 1 70.0 0
Peons Coast Highway to Me Use 86 186 4aa 46 46 1 69.0 0
Via Use to Balboa Be 146 314 32 45 1 67.5 0
SuporiorAvonua Newport to Placentia 46 99 214 18 45 1 65.0 0
Placenfia to Pacific Coast Highway 57 124 267 25 46 1 6e.4 0
Balboa Boulevard Pacific Cciest Highway 10 38th Street 46 99 214 18 45 1 65.d 0
38M Street to 32nd Street 43 92 198 16 45 1 64.4 0
32nd Street to 28(h Street 43 92 198 16 45 1 64.4 0
28th Street to Newport Blvd 39 64 let 14 45 1 633 0
East of Newport Blvd 54 117 252 23 4S 1 66.0 0
Campus Drive Jamboree MacAunhur 39 64 161 14 45 1 63.9 0
MacArthur to Dove St 54 117 252 23 45 1 66.0 0
Dove St to Quail St 60 130 281 27 45 1 66.7 0
Quail St to Bristol 57 124 267 25 45 1 66A 0
Irvine Boulevard Bristol to University 73 Ise 340 36 45 1 68.0 0
UnIverslit,10 23rd Street 77 166 359 39 45 1 68.3 a
23rd Street to 22nd Street 77 Ise 359 39 45 1 68.3 a
22nd Street to I gin Street 72 155 334 35 45 1 67.8 0
1 gin Street to 17th Street 62 133 288 28 45 1 68.9 0
17th Street to 16th Street 46 99 214 Is 45 1 650 0
16th Street to 16th Street 39 84 181 14 45 1 63.9 0
westcliff Drive **[mine Ave to Dover Or 49 107 230 20 45 1 65.4 0
Dover Drive "Irvine Ave to Wastcliff Or 29 63 135 9 45 1 61.9 0
-WastdIff Dr to Cliff Or 62 133 288 28 45 1 66.9 0
-Cliff Or to Pacific Coast Highway 65 140 301 30 45 1 67.2 0
Birch Street MacArthur Is Von Karmarn 31 67 145 10 45 1 62.4 0
Van Kaman to Jamboree 33 72 154 11 45 1 62.8 0
Bristol Street twine to Birch 51 110 237 21 45 1 65.6 0
Birch to Jamboree 46 99 214 18 45 1 65.0 0
North Bristol Street [Nino to Birch 54 117 252 23 46 1 66.0 0
Birch to Spnico St 48 103 222 19 45 1 65.2 0
Spruce St to Jamboree 39 84 181 14 45 1 63.9 0
Jamboree Road Campus to Birch 69 149 321 33 45 1 67.6 0
Birch to MacArthur so 130 281 27 46 1 66.7 0
MacArthur to Bristol St N. 62 133 288 28 45 1 68.9 0
Bristol St N.to Bristol St 118 255 550 74 45 1 71.1 0
Bristol St to University Or 45 97 209 55 45 1 69.8 5 E Bluff(W side)
University Or to Bison 41 87 is$ 47 45 1 69.1 5 E Bluff(W side)
Bison to Ford 41 87 lee 47 45 1 69.1 5 E Bluff(W side)
Ford to San Joaquin Hills 40 86 Ise 46 45 1 69.0 5 E Bluff(W side)
San Joaquin Hills to Back Bay Or 75 161 346 37 45 1 68.1 0
Back Say Or to Pacific Coast Highway 34 73 Ise 36 45 1 68.0 5 Soadifit(E side)
BaysIde Drive Padfic:Coast Highway to Marino Ave 39 84 181 14 45 1 63.9 0
Marine Ave to El Pam Or 29 63 135 9 45 1 61.9 0
El Pam Or to Carriallon Ave 27 58 125 a 45 1 61.4 0
Carnation Ave to Marguerite 17 38 �9 4 45 1 58.4 0
MacArthur Boulevard 'Campus Or to Birch St 60 130 281 27 45 1 B8.7 a
*BIrch St to Von Karman Ave 49 107 230 20' 45 1 65.4 0
'Van Karmen Ave to Jamboree Blvd se 120 259 24 45 1 66.2 0
-Jarnbores Blvd to University Or 48 99 214 18 45 1 65.0 0
'University Or to Bison Ave 48 104 224 61 45 1 70.3 5 W side
'Bison Ave to Ford Rd 48 104 224 61 45 1 TDT 5 Waldo
'Ford Rd to San Joaquin Hills Rd 43 94 202 62 45 1 69.6 5 Waldo
San Joaquin Hits to San Migiial 34 73 158 36 45 1 68.0 5 E Side
San Miguel to Padffc Ckiast Highway 33 70 152 34 45 1 87.7 5 E$I"
NEWPORT BF-4CH NOISE ELEMENT TECHNICALAPPEIVDIX
Table 3(continued)
MESTRE CREYEASSOCIATES
HEINPORTBEACHNOISEaEWNT
S78TANG YEAR 1001 MUTER W1 BARRIER CNEL CONTOUR SPREADSHEET
IVIM
kidexft: OraVoCounryArterWhthr 1
Flomay W/5%Tncb(2.5%ur 2.5%Hn 2
Fmiomy w17%nxier(as%mr,s.s%�M 3
Distonceto CHEL Contour(h) ADT
Roadway Link 70CNEL 85 CNEL 60 CNEL 41000) Speed index CNELIOO Ram.Aft. Location
Von Korman Avenue Campus 10 Birch 33 72 154 11 4S 1 62.8 0
Birch to MacArthur 25 63 11141 7 45 1 60.9 0
Bison Avenue Jamboree to Camoloack 25 53 114 7 45 1 60.9 0
Camolback to MacArthur 27 58 125 a 46 1 61.4 0
Ford Road JaMbor"to MacArthur it 25 53 7 45 1 60.9 5 N side
San Joaquin Hills Road jernborso to Santa Cruz 4a 99 214 is 45 1 85.0 0
Santa bruz 10 MacArthur 37 00 172 13 45 1 63.5 0
MacArihurloSmMigual 39 64 161 14 45 1 63.9 0
Pacific Coot Highway W"totprospect at Ise 423 so 45 1 09.4 0
Prospect to superior 04 180 389 44 45 1 68.8 0
Superior to Newpon Is 32 6 W 4s 1 67.6 10 S side
Newport to Tustin 97 209 451 as 45 1 6918 0
Tustin to Madrid Or 92 199 429 61 45 1 6915 0
Madrid Or to Dover so 194 418 40 45 1 69.3 0
Dover to Jamboree 46 09 214 57 45 1 70.0 a N side
Jamboree to Newport Center Or 38 82 178 �3 4S 1 88.7 5 N&S side
Newport Center Or to MacArthur 35 78 164 38 45 1 68.2 5 S side
MacArthur to Motguadia, 92 199 429 51 46 1 694 0
Easto[Marguento 80 172 371 41 45 1 68.5 0
SR-73 Campus to Jarritiorea 47 ioo 216 65 55 3 75.0 10 N&S sides
1988SummerTmIkilotumas
1966 Fall Tralk Volunt as
t 1986sunruriff Trahk Volumes
NE"ORT BE4CH NOISE ELEVEff TECHNICALAPPEArDff
Table 4
MESTRE OREVE ASSOCIATES
NEWPORrBEACHNOISEELEMENr
FUTURE YEAR 2010 CNEL WIO BARRIERS CONTOUR SPREADSHEET
If/1"i
Index Key. Orange CournyArlorial Mix I
Froinvay W/5%Trucks(25%MT 2.5%HT) 2
Freeway wl 7%Trucks(3.5%MT,3.5%HT) 3
Distance to CNEL Contour(ft) ADT
Roadway Link 70 CNEL 65 CNEL 60 CNEL (xIGOO) Speed Index CNELIGO Bam.Att.
Bluff 17th Street to 15th Street 43 92 198 is 45 1 64.4 0
Placentia Avenue 171h Street to Superior 44 96 206 17 45 1 64.7 0
Superior to Newport 49 107 230 20 45 1 65.4 0
Newport Boulevard 17th Street to Hospital Rd 119 257 555 75 45 1 71.2 0
Hospital Rd to Pacific Coast Highway 103 222 478 60 45 1 70.2 0
Pacific Coot Highway to Balboa 110 236 509 66 45 1 70.6 0
SupodorAvenue Newport to Placentia 62 133 268 28 45 1 66.9 0
Placentia to Pacific Coast Highway 46 99 214 is 45 1 65.0 0
Balboa Boulevard Pacific Coast Highway to Newport 44 96 206 17 45 1 64.7 0
East of Newport 75 161 346 37 45 1 68.1 0
22nd Street Newport to Irvine 22 48 103 a 45 1 60.2 0
Dover Drive Irvine to Mariners 27 sa 125 a 45 1 61.4 0
Mariners to 17th Street 37 so 172 13 45 1 63.5 0
17th Street to Pacific Coast Highway 70 152 327 34 45 1 67.7 0
17thStteat [Nina to Dover 41 88 190 is 45 1 64.2 0
15th Street Pacific Coot Highway to Bluff 33 72 154 11 45 1 62.8 0
Bluff to Superior 46 99 214 18 45 1 65.0 0
Campus Drive Jamboree Von Korman 67 124 267 25 45 1 66.4 0
Van Korman to MacArthur 65 140 301 30 45 1 67.2 a
MacArthur to Bristol 76 164 362 38 45 1 68.2 0
Irvino Boulevard Botol to Mesa Drive 62 133 288 28 45 1 66.9 0
Mesa Drive to Dal Mor Ave 72 155 334 35 45 1 67.8 0
Dal Mof Ave to 22nd Street 65 140 301 30 45 1 67.2 0
22nd Street to 1 gill Street 53 114 245 22 45 1 65.8 0
Ifith Street to 171h Street 44 96 206 17 45 1 64.7 0
South 0117th Street 37 80 172 13 45 1 63.5 0
Mesa Drive Santa Ana to Birch 41 88 ISO is 45 1 64.2 0
Birch Street mesa Dove 10 Bristol 51 110 237 21 45 1 65.6 0
Bristol to MacAnhur 56 120 259 24 45 1 66.2 0
MacArthur to Von Karmail 39 64 181 14 45 1 63.9 0
Von Korman to Jamboree 37 so 172 13 45 1 63.5 0
Bristol Street Santa Ana to livino 87 188 406 47 45 1 69.1 0
[Nino to Jamboree 72 155 334 35 45 1 67.8 0
North Bristol Street Campus to Jamboree 69 149 321 33 45 1 67.6 0
Jamboree Road Campus to Birch as 1113 395 45 46 1 60.9 0
Birch to California 87 188 406 47 4S 1 69.1 0
California to MacArthur 77 166 359 39 45 1 68.3 a
MoAnhur to Bristol 87 lea 406 47 45 1 69.1 0
Bristol 10 Univarshy Or North 91 196 423 50 45 1 69.4 a
University Dr Norlh to University Or 125 269 579 so 45 1 71A 0
University Dr to Bison 109 234 504 65 45 1 70.5 0
Sison to Ford 110 236 509 66 45 1 70.6 0
Ford to San Joaquin Hills 112 241 590 68 45 1 70.7 0
San Joaquin Nils to Santa Barbara 97 209 451 65 45 1 69.8 0
Santa Barbaria to Pacific Coast Highwa) 89 191 412 48 45 1 69.2 0
Baystdo Drive Pacific Coast Highway to-Jambores 33 72 154 11 �s 1 62.8 0
MacArthur Boulevard Canipus to Birch 84 ISO 389 44 45 1 68.8 0
Birch to Von Kennon 72 155 334 35 45 1 67.8 0
Von Karman to Jamboree 79 169 365 40 45 1 68.4 0
Jamboree to University Or North 72 iss 334 35 45 1 67.8 0
University Or North to University Of 92 199 429 51 46 1 00.5 0
University Dr to Sonlut Cyn 95 204 440 53 4.5 1 OD.8 0
NEWPORT BEACH NOISE ELFJfEff TECHNICAL APP&VDIX
Table 4(corillnuaid)
ACS7WE GREVE ASSOCfATES
NEWPOR)"BEACHNGISEELEMENT
FUTURE YEAR20`10CNEL W10HARRAERS CONTICURSPREADSHEET
11/1"I
k7dox Kay. Orange County Arterial Mix I
Freeway W/5%TAKU l2k MT,2.5%H?) 2
Freeway W7%Trucks(.%$%MT 2.5%HT) 3
Distance to CNEL Contour(n) ADT
Roadway Link 70 CNEL 63 CNEL 60 CNrl. (MOGG) Speed Index CNELI00 Sarr.Atl.
MacArthur Blvd(cont.) Bonita Cyn to Bison 99 214 462 57 45 1 70.0 0
Bison to Ford 105 227 489 02 45 1 7(0 0
Ford to San Joaquin Hills 102 219 473 59 45 1 70.1 a
San Joaquin Hills b San Miguel 75 161 346 37 45 1 SBA 0
San Miguel to Pacific Coast Highway 63 137 294 29 45 1 67.0 0
Von Korman Avenue Carnpus to Birch 48 103 222 19 45 1 65.2 0
Birch to MacArthur 35 78 103 12 45 1 63.2 0
University Drive North Jamboree to California 44 so 200 17 45 1 64.7 0
Olson Avenue Jarnboroo to MacAnhur 60 130 281 27 45 1 66.7 0
University Drive MacArthur to Jarnbotoo 69 127 274 26 45 1 68.8 0
Easualu"Drive Jamboree(Nonh)10 Nnsut Dal Sol 41 88 190 15 45 1 64.2 0
Vista Dal Sol to Jamboree(South) 37 go 172 13 45 1 63.5 0
Ford Road Jamboree to MacArthur 39 04 181 14 45 1 63.9 0
MacAnhur lo San Miguel 57 124 267 25 46 1 66.4 0
San Miguel to SJHTC 62 133 288 28 45 1 66.9 0
So Joaquin Kills Read Jamboree to Santa Cruz 49 107 230 20 45 1 65.4 0
Sant&Cruz to Santa Ross as 76 163 12 45 1 63.2 a
SantaRosaloWcAnhur 43 92 too 18 45 1 64.4 0
MacArthur to Son Miguel 35 76 163 12 45 1 63.2 0
San Miguel to Marguerite 44 90 208 17 45 1 64.7 b
Marguoilto to spyglass Hill 53 114 245 22 45 1 65.8 a
East of Spyglass HUI 46 99 214 IS 45 1 65.0 01
NowportContorOdvo Pocilic Get Hwy to Newport Crar Dr Eas 39 84 181 14 45 1 63.9 0
Santa Barbara Drive Jamboree to Newport Center Or West 39 84 let 14 46 1 63.9 0
Santa Cruz Drive SonJoaquin Kits to Newport Ontr Of W 35 78 103 12 45 1 63.2 0
Avocado Avenue San Miguel to Pacific Coot Highway 25 53 114 7 45 1 60.9 0
San Miguel Drive Newport Cnir Dr E to MacArthur 39 84 101 14 45 1 63-9 0
MacArthur to San Joaquin Nil 37 60 172 is 46 1 83.5 0
San Joaquin Hills to Spyglass Hill 27 58 125 a 45 1 SIA 0
Spyglass"it to Bonita qn 33 72 154 11 46 1 62.8 0
Spyglass Hill Road San Miguel 10 San Joaquin Hills 11 23 49 2 45 1 55.4 0
Marguerite Avenue San Jonauln Nil$to 5th Ave 11 23 49 2 45 1 66.4 0
Bill Ave 10 Pacific Coal Highway 11 23 49 2 46 1 65.4 0
Pacific Cout Highway West ollsth street 94 202 434 52 45 1 69.6 0
15th Street to Bluff 90 194 fig 49 46 1 69.3 0
Bluff to Supotior 99 214 462 57 46 1 70.0 0
SUporkurtoNewport 92 199 429 51 45 1 69.5 0
Newport:o Tustin 121 260 Soo 76 45 1 71.2 0
Tusdn to Over, 102 219 473 so 45 1 70.1 0
DoverioSayside 126 271 584 81 45 1 71.5 0
BRY61da to JaMborwo 123 284 Wo 78 45 1 71.3 0
Jamboree to Newport Center Dr go 207 446 64 45 1 69.7 0
Newport Center Or to MacArthur 89 191 412 40 45 1 69.2 0
MacArthur to Marguerite 81 176 377 42 45 1 08.6 0
Marguerite to Newport Coast SO 140 314 32 45 1 67.5 0
SR-73 Campus to Jamboree 467 1006 2168 200 65 3 80.0 0
SJ14TO Jambot"10 Bison 432 930 2004 183 55 3 79.5 0
Bison to Smile Cyn 43g 4940 2026 ISO 55 3 79.8 0
NEWPORTBEACH NOISE ELEMW TECHNICALAPPENDIX
Table 5
MESTRE GREVEASSOCIATES
NEWPORT'DEACHNOISEELMENT
FUTURE YE4R20f0CNEL WISARRIERS CONTOUR SPREADSHEET
11118,191
Woxifey.- Orange CounlyAltariteliffix I
Freeway W5%Trucks(2.5%Mr,2.5%HT) 2
Firisswity W 7%T=ks,(3.5%MF,3.5%H7) 3
Distance to CNEL Contour(liff ADT
Roadway Link TOCNEL 65 CNSL SOCNEL (x10OO) Speed Index CNELIGO Bam.Att. Location
Bluff 17th Street to 1S1h Street 43 92 198 16 45 1 64.4 0
PlacontiaAvorius 17th Street to Superior 96 20S 17 46 1 64.7 0
Superior to Newport 49 107 230 20 45 1 65.4 0
Newport Boulevard 17th Street to Hospital Rd 119 267 556 76 45 1 71.2 0
Hospital Rd to Pacific Coast Highway 103 222 478 60 45 1 70.2 0
Pacific Coast Highway to Balboa Ito 236 Boo 66 45 1 70.6 0
SupodorAvanue Newport to Placentla 62 133 288 28 45 1 66.9 0
Placentia to Pacific Coast Highway 46 99 214 18 46 1 65.0 0
Balboa Boulevard Pacific Coast Highway to Newport 44 96 206 17 45 1 64.7 0
East of Newport 75 181 346 37 45 1 68.1 0
1
22rd Street Nowport to livine 22 48 103 6 45 1 60.2 0
Cover Drive livix,to Mariners 27 58 126 a 45 1 61.4 0
Marinors to 17th Street 37 80 172 13 45 1 63.5 0
17th Street to Pacific Coast Highway 70 152 327 34 45 1 67.7 0
17th Street livine to Dover 41 88 190 is 45 1 64.2 0
16th Street Pacific Coast Highway to Sluff 33 72 154 11 45 1 62.8 0
Bluff to Superior 46 99 214 is 45 1 65.0 0
Campus Drive Jamborm Van Karmen 67 124 267 25 46 1 66.4 0
Von Kamnan to MacArthur 65 140 301 30 45 1 67.2 0
MacArthur to Bristol 76 164 352 38 45 1 6812 0
Imino Boulevard Bristol to Mom Drive 62 133 288 28 45 1 66.9 0
Mass Drive to Dal MarAve 72 155 a34 35 4S 1 67.8 0
Del MarrAve to 22nd Street 65 140 301 30 45 1 67.2 a
22nd Street to I gth Street 53 114 245 22 4S 1 65.8 0
1 Sth Street to 17th Street 44 96 206 17 4S 1 64.7 0
SoutholMhStreat 37 80 172 13 45 1 63.5 0
Mesa Drive, Santa Am to Bitch 41 as 190 Is 46 1 64.2 0
Birch Street Mom Drive to Bristol 51 110 237 21 46 1 65.8 0
Bristol to MacArthur 56 120 259 24 45 1 66.2 0
MacArthur to Von Kaman 39 114 181 14 45 1 63.9 0
Von Karman to Jamboree 37 80 172 13 45 1 63.5 0
Bristol Street Santa Am to lrv*inG 87 188 406 47 45 1 69.1 0
Was to Jamboree 72 155 334 36 45 1 67.8 0
North Bristol Street Campus to Jamboree 69 149 321 33 45 1 67.6 0
Jamboree Flood Campus to Birch 85 183 395 45 45 1 68.9 0
Birch to California 87 188 406 47 45 1 69.1 0
California to MacArthur 77 166 359 39 46 1 68.3 0
MacArthur to Bristol 87 Isill 406 47 45 1 69.1 0
Bristol to University Dr Noah 42 91 195 so 4d 1 69.4 5 E Bluff(W SWO)
University Or North to University Or 68 125 269 80 4$ 1 71.4 5 E Gluff(W side)
Umersity Or to Bison 50 109 234 65 45 1 70.6 6 E Stuff(W side)
Bison to Ford 61 110 236 66 45 1 70.6 5 E Stull(W side)
Ford to San Joaquin Hills 52 112 241 Ge 45 1 70.7 5 E Bluff(W side)
San Joaquin Hills to Santa Barbara 97 209 451 55 45 1 69.8 0
Santa Barbara to Pacific Coast Highwal 41 89 191 48 45 1 69.2 5 Seadiff(E side)
Baysids Drive Pacific Coast Highway to Jamboree 33 72 164 11 45 1 62.0 0
NEW ORT BFA CH NO ISE EL EMW TECHIVICALAPP&DIX
Table 5(continued)
MESTREOREVEASSOC14TES
NEWPORTREOICHAIDISEELEMENr
FUTURE Y#AR 2010 CNEI.w1amutfinERs courouR spiquosHEET
lif/1"i
Ir,d@xK#y., Otargo CourtyArterki ANx
Ffflefty W 5%rariur(25%mr,2.6%HT) 2
Fro 9"Y W 7%Thucks 13.5%M r.3.5 H7? 3
Dietar"to C"El.Cornom
Roadway Link 70CNrL as DUEL 60 CNEL NAINDT01 Speed hidex CNELIGG Ham.Att. Location
MacArthur Boulevard Carnpus to Birch 04 180 289 45 1 68.8 0
Birch to Van Karrman 72 fee 334 as 46 1 67.8 0
Van Karrian to Jamboree 79 lag 366 40 45 1 68.4 0
Jamboree to University Or North 72 165 ON 35 45 1 67.8 0
University or North to University Or 43 92 199 51 45 1 69.5 6 W side
University or to Bonita Cyr; 95 204 53 45 1 09.6 5 W aide
Bonita Cyn to Sion 46 99 214 67 45 1 70.0 6 IN side
Bison to Ford 49 105 227 52 45 1 70.3 a Welds
Ford to San Joaquin Hills 47 102 2ig so 45 1 70.1 5 WSW*
San Joaquin Hills to San Miguel 35 75 lot 37 45 1 88.1 5 Ealds
am Wguel to Pacific Coull Highway 29 63 137 29 45 1 67.0 5 Ealds
VortKamanAvenue CwpustoBimh 40 103 222 to 46 1 65.2 0
Birch to MacArthur as 76 163 12 46 1 83.2 0
University Drive North JanibliteetoCalifornia. 44 06 206 17 45 1 64.7 0
Sinn Avenue Jmboms to MacArthur 60 130 281 27 4s 1 60.7 0
Univomity,Drive MacArthurto,farnboree, 69 127 274 26 4S 1 68.6 0
EastWull Drive Jamboree(North)to Vista Dal Sol 41 so 190 Is 45 1 842 a
Vista Dal Sol to Jmbomo(South) 37 00 172 13 45 1 63.5 0
Ford Flood Jmboreo to Macorthur is 39 04 14 Als 1 63.9 6 N side
MacArthurto San Migual 67 144 287 25 45 1 W.4 0
San Mgwl to SJHTC 62 133 288 28 45 1 66.2 0
San Joaquin Wj Is Flood Jamboree to Santa Ong 49 107 230 20 45 1 66.4 0
SanlaC=to Santa Ron as 76 163 12 46 1 63.2 0
Santa Ron to MacArthur 43 92 198 Is 45 1 64.4 0
MacArthur to San Miguel 35 76 163 12 45 1 63.2 0
San Miguel to Marguerite 2t go 17 45 1 i4.7 5 8 side
Marguerite 10 spyglass Hit 24 63 114 22 45 1 65.8 5 S Bids
Ent of Spyglass Hill Z 46 99 to 45 1 65.0 5 N side
Newport Canter Drive Pacific Dal Hwy to Newport Cnit Or Eas 39 84 181 14 4S 1 63.9 0
Sarta Barbara Drive Jannborao to Newport Cantor DrWast 39 84 lei t4 45 1 63.9 0
Santa C=Drive San Joaquin Hills to Newport Crtr Or IN 35 76 163 12 45 1 63.2 0
Avocado Avenue San Miguel to Pacific Cout Highway 25 63 114 7 45 1 60.9 0
San Migual Drive Newport Cnlr Or E to MacArthur 39 84 let 14 45 1 6319 0
MacArthur to San Joaquin Hill 07 00 172 13 45 1 63.6 0
San Joaquin Hills to Spyglass Hill 27 so 125 0 45 1 61.4 0
Spyglass Hill 10 Bonita Cyn 33 72 164 11 45 1 62.0 0
Spyglass Hill Road San Miguel to San Joaquin Hills i 1 23 49 a 45 1 55.4 0
Marguerite Avenue San Joaquin Hills to Slh Ave 111 23 49 2 45 1 55.4 0
Sth Ave to Pactio Cant Highway I t 23 49 2 45 1 66.4 0
Pacific Gout Highway West oilitht street 94 202 434 S2 45 1 69.6 0
1 51h Street to Stuff 90 194 41ll 49 45 1 69.3 0
Bluff to Superior 99 214 482 67 45 1 70.0 0
Superior to Nowpon 20 43 02 61 45 1 69.5 to SSW$
Newport to Tustin i2l 960 660 76 45 1 71.2 0
Tustin to Dovor 102 210 473. so 4$ 1 70.1 0
Dever to Saysids 126 271 584 at 45 1 71.S 0
Baysids to Jmbom 67 123 264 78 45 1 71.3 a N slits
Jarribafas to Newport Center Or 4S go 207 54 45 1 69.7 6 N A S sides
Newport Cantor otio MacArthur 41 89 111 48 45 1 69.2 6 S"
MmAnhurtoMarguerfis 81 17S 377 42 45 1 60.6 0
Marguerite to Newport Omit 60 14a 314 32 45 1 67.5 a
SR-73 Carnpua to Jambotoo lot 217 467 200 55 a 80.0 10 N&S Wn
SJHTC Jmbom to Sion 432 ON 2004 183 65 3 79.5 0
Bison to Sontla Cyn 436 940 20:21 lee 56 3 79.6 0
NEWPORTBEACHNOISEELEMENT TECHNICAL APPOW